Write four fractions that are greater than 3 5 but smaller than 4 5?

The four scores that are greater than 3 5 and smaller than 4 5 are 25

The basic nature of fractions.

The numerator and denominator of the fraction are multiplied or divided by the same number (except 0) at the same time, and the size of the fraction remains the same. This is called the basic property of fractions.

Use. The basic nature of fractions is the theoretical basis for reducing and passing points.

Scores. According to the basic nature of fractions, the process of converting several fractions with different denominators into fractions with the same denominator as the original fractions is called a common fraction.

The problem of fraction size comparison and fraction addition and subtraction can be solved by using the general score.

Reduction: Divide the numerator and denominator of a fraction by the common factor at the same time, and the value of the fraction remains unchanged, this process is called reduction.

The basis for the reduction: the basic nature of the score.

If the greatest common factor of the numerator and denominator can be quickly analyzed, it is easier to remove it directly with this greatest common divisor. Fractions can be simplified by using reductions; When direct reduction is difficult, the numerator denominator can be reduced to the prime factor.

Of these, 14 9 to three-fifths and 4 3 to three-quarters, so it can be written:

FRAC > is > frac > frac > frac > frac

Except for 13 9 and 18 12, the others can be used as a fraction of the number of land that is smaller than three-fifths than three-quarters.

None of them are right, and the scores listed by the repentant shouting are all greater than 3 4

There is actually an infinite number of fractions between 3 5 and 3 4.

Note: 3 4 is greater than 3 5

3 4-3 5=3 (5 20-4 20)=3 20 then just look for a fraction between 0 and 3 20 plus 3 5, for example:

Answer: Change the reed according to the meaning of the topic to know the return to Huai.

So the fractions that are smaller than three-fifths than three-quarters are (13, 20, 14, 20, etc.). Writing 12 is wrong to omit a friend.

What you write is only content to be bigger than 3 5, but it's also bigger than 3 4.

3/5=；3 Wild 4=

It's easier to write the decimal in the middle of their pants, just crack them and turn them into fractions. For example.

So it can be ...... 6 14 = 12 28and 8 14 = 16 28 ......Look for it between.

Examples: 13 28 and 15 28

The fraction greater than 4/7 and smaller than 5/7 is: 23/5

Scores greater than 3 5 and smaller than 4 5 have 9 ......）

Many, much more.

Let's write them all as 10 as a fraction with the denominator.

3 5 = 6 10 = 12 20, 4 5 = 8 10 = 16 20, so between them, isn't there a lot?

13 20, 14 20, 15 20, all answers.

The key BAI is to master the method: expand the denominator.

du3 5 6 10, 4 5 8 10, so that there is between dao in zhi.

7 10, 3 5 9 15, 4 5 12 15, so that there are 10 15 ( 2 3), 11 15 two capacity, 3 5 12 20, 4 5 16 20, so that there are 13 20, 14 20 ( 7 10), 15 20 ( 3 4) three, 3 5 15 25, 4 5 20 25, so that there are 16 25, 17 25, 18 25, 19 25 four, and so on, 30 is the denominator of 5, 35 is the denominator of 6, There are 7 ...... with 40 as the denominator

4/6, 5/7, 6/8, 6/9, 7/9.