4 5 and 17 20 who is bigger

Basic Concepts of Fractions:1If the denominator is the same and the numerator is large, the number is larger;

2.If the numerator is the same and the denominator is small, this number is larger;

3.Except for numbers where the numerator and denominator are multiplied or divided by 0 at the same time, the fractional magnitude remains the same.

Several ways to compare sizes:

1.If there is a multiplier relationship between the two number denominators, multiply the smaller and smaller number in the denominator by the numerator denominator at the same time, and then compare the size. Your question is an example of this:

Because there is a clear multiples relationship between 5 and 204, if the numerator and denominator of 4/5 are multiplied by 4 at the same time, then 4/5 = 16/20, and 4/5 is smaller because the numerator is 16<17.

2.If there is a multiples relationship between two numerators, multiply the smaller number and the numerator denominator by multiples at the same time, and then compare the sizes. At this time, the number with the largest denominator is relatively smaller.

3.If there is no multiplier relationship between the numerator and denominator, you can try to subtract, if the subtraction is an integer, the subtraction is larger; If the subtraction is negative, the subtraction is small.

4.There is a conversion key for fractions and decimals in the computer, so you can directly convert fractions to decimal and then compare the size.

17/20

4/5, the numerator denominator is multiplied by 4 at the same time, the denominator becomes 20, and the numerator becomes 16

Because 16 is less than 17So, 17 out of 20.

To compare the sizes of 45/20 and 14/5, we need to convert them into the same minus dust. First, we can reduce 45/20 to 9/4, and then 14/5 to 56/20. Next, we can compare their molecular sizes, 4 to 20, obviously 20 is larger, so 56/20 is larger than 45/20.

In other words, 45 out of 20 is, and 5 out of 14 is. It can be seen that 45/20 is closer, while 5/14 is closer. Therefore, 45 out of 20 is bigger than 14 out of 5.

In general, comparing fractional sizes requires converting them to the same denominator and then comparing their numerator sizes. In practice, we can convert fractions to decimal or percentage fractions to compare their large and small leaks.

To compare the sizes of 45/20 and 14/5, we need to convert them into the same fractional form, respectively. First, 45/20 can be converted into fractions in the form of 45 20, i.e. 9 4;And 14 out of 5 can be converted into a fraction of 14 5. Next, we can multiply the denominator of these two fractions to get a fractional form of a general fraction for comparison.

After the division, 9 4 became 63 28, and 14 5 became 56 28. Obviously, 63 28 is greater than 56 28, so 45/20 is greater than 5/14.

To summarize, we can compare the size of two fractions by converting them into the same form of score. In this example, we find that 45/20 is larger than 14/5 when converted into fractional form, so 45/20 is greater than 14/5.

Answer: The value of 45 20 is reduced to 9 4=.

And the value of 14 5 after reducing the differentiation of Jane is.

So 5 out of 5 socks and celery 14 to 45 out of 20 big shed.

Solution: 20 minutes of 45 molecules of Wang liquid shoot Lingji attack is larger than the denominator, so it is equal to.

In the same way, 14 out of 5 is equal to.

So 14/5 large.

To compare the sizes of 45/20 (i.e., $frac$) and 14/5 (i.e., $frac$), you can divide the two fractions together so that you can compare the size of the molecule.

The method of general fraction is to multiply the denominator of two fractions to obtain a common denominator, and then multiply the numerator according to the ratio difference guess. Specifically, we can divide the above two scores into $frac$ and $frac$.

Now the problem becomes comparing the size of $frac$ and $frac$. Because the denominator of the two fractions is the same, we just need to compare their numerators. Obviously $560>225$, so $frac$ is greater than $frac$, i.e. 45/20 is greater than 5/14.

To understand the results of this auspicious answer, we can convert 45/20 and 14/5 into decimal form. With a calculator or by manual calculation, you can get:

frac= It is wise to see that 45/20 corresponds to a larger decimal, so 45/20 is greater. This is also in line with our intuitive feeling about the size of the fraction: when the denominator is the same, the larger the numerator, the larger the corresponding fraction.

In summary, 45/20 is greater than 5/14.

7/20 = 21 60

4/15 = 16 60

7/20>4/15

47 20 is greater than 13 6

Xie Xun Naishi: 1Multiplying the numerator 47 by another denominator six gives 282, the numerator 13 20 gives 260, and the numerator comparison gives 47 20 is greater than 6 Nachang Li 13

2.According to the two formulas are false fractions, jointly mention a two, the left fraction is two and 7 20, the right is two and 1 6, the score is compared, Li Chi can get, 20/47 is greater than 6 13

Answer: According to the meaning of the question, it can be known that it is suspicious: because I would like to talk about it.

20 minutes auspicious did not touch 47) large.

Solution: 47 20, 13 6, the shield is divided into: 141 60, 130 60, because: 141 60 130 pin closed 60, so: 47 20 13 6. Koto Sakura.

Compare the size of the fraction, then the general fraction, the unified denominator light to compare the size of the numerator. Rent Zheng Ji.

47 Disadvantages 20 = 47 * 3 20 * 3 = 141 60

47 20 is greater than 13 6

141 60-130 60=11 60 0

The two suspicions of sail scores of 47 20 are relatively large grinder pure.

Who is bigger than 13/25 and 2/5, 13/25 is greater than not holding 2/5, when calculating who is bigger than 13/25 and 2/5, first check the number of wax keys in the wheel to check the clever points, and then continue to compare, that is, 2 5 = (2 * 5) (5 * 5) = 10 25, because 13 > 25 25 = 2 5

So 13 out of 25 is bigger than 2 out of 5.

After simplification, it is equivalent to three-fifths and four-fifths of whom, and marriage is obvious, of course, four-fifths, that is, 20/25.

9 15 = 45 75, 20 25 = 60 75, and 60>45, 60 75>45 75 (the same denominator, the fraction of the numerator is larger), 9 15 and 20 25 compare, 20 25 large.

7/20 < 1/2, and the other two are greater than 1/2, so 7/20 is the smallest.

16/25 16 25

5/7 5 7

125 175 > 112 175

So 5 out of 7 is the largest.

5/7> 16/25> 7 of the 20th Rite

The least common multiple of the female is 5 4 5 7 = 700

The three numbers become 448 700, 245 700, and 500 700

So 7 20<16 25 "Wandering 5 7, 5 7 is the largest.

The first two are scored first.

It becomes 64 per cent and one hundred per cent 35.

The sum is changed to the first to be greater than the second.

Because five out of seven equals more.

Therefore, the biggest is still seven clear circles, and the shed collapses five.

The two fractions can be compared to a decimal place or compared after a score.

In this question, since 4/10 is equal to 10/25, 4/10 is equal to 10/25.

Or it can be calculated like this: 4 tenths is simplified, and the numerator and denominator are divided by 2 when the calendar socks are divided by 2 to 2 to 2 5;Ten out of 25 is simplified, and the numerator and denominator are also 2 5 after dividing by 5, so the same conclusion is reached.

Answer: According to the blind and clever call of the question.

Because 4 10 Mo Kai, and 10 25

So 4 out of 10 and 10 out of 10 are the same size (i.e., equal).

Hello, for you to solve the cheats empty answer, 4 10 = 4 5 10 5 = 20 50

So two are the same size.

I hope that renting or hoping will help you.

Simplify it to get 2 5 and 2 5, so it's the same size.

One part of the six pre-knowledge = 48 points of wisdom talk about eliminating 8

Five-fourties = four-eighths of 10

Therefore five out of twenty-four and one out of six waiters.