A is a fraction more than B, find how much A and B are Find the calculation method

A is a fraction more (less) than B" is a very common mathematical term, with a very strict definition and standardized usage. A similar but simpler term is:

1) "A is more (less) than B": "than" here only has the meaning of subtraction, and its definition is:

A and B; (where + (is a plus or minus sign.)

Corresponding: more and less) respectively

2) "A is a fraction more (less) than B": Because the result of "than" is a fraction - a fraction, so the "than" here has the meaning of division in addition to subtraction, which is defined as:

A b) B fractions; (plus or minus + (- or corresponds: more and less) respectively).

Note: For the case where there is a negative sign to the right of the equal sign, that is, the case of "less", you can "increase (subtract) a negative sign" on both sides of the equal sign (i.e., multiply (divide) -1 respectively, and the equation still holds:

The right side of the equal sign becomes positive; To the left of the equal sign, become: B A; - If you haven't learned negative numbers, that's all you can do.

For the "A: B" you request, you should find it according to the "relationship between ratio and division". Ratio, division, and fraction are essentially the same, but the result is represented differently.

A b) B fractions;

a, b) b) fractions; - Multiplicative distributive law.

Division is also satisfied;

a. b) 1 fraction;

a. b) 1 fraction; - Shifting terms, plus and minus signs correspond to addition and subtraction;

Place the numerator and denominator of the fraction.

To distinguish: A B 1 (the numerator of the denominator.)

denominator of denominator) denominator of numerator); — General points.

Denominator of fractions (denominator (numerator)

will be divided. and the fraction line to the scale sign:

A: B Denominator (numerator): Denominator.

Now, we can directly see the result of "A: B" from "A is a fraction more (less) than B", for example:

A is 1/3 more than B;then A: B 3 1) : 3 4 : 3;

A is 3/4 less than B;then A: B 4 3) : 4 1 : 4;

A is 5 times more than B (5 equals 5/1); then A: B 1 5) : 1 6 : 1;

Subtract your number from that nail.

A - B = fractions.

B = A - fractions.

A fraction more than B: (A-B) B.

B is a fraction less than A: (A-B) A.

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A is two-sevenths more than B, and B is considered to be unit 1, and B is less than A = 2 7 (1 2 7) 2 7 7 9 2/9

Conversely, A is 7/9 more than B

If you make a mistake, it's 2/9 more than B.

Let the total number be x, and 2 9 parts be 50, and get x as 225

I don't understand it at all.

What is the total?

Wait a minute, I'll do the math again.

Let's do it all over again, just a little bit of a problem.

If we think of B as 1 and let B be x, then A will be 9 7, i.e. 9 7x

Because A has 2 7 more than B, that is, 50 more, 9 7x-x=50, i.e., 2 7x=50

In this way, 2 7 is 50, 1 7 is 25, 25 * 7 = 175, 175 + 50 = 225. A 225, B 175.

Okay, understood, thanks.

There's an easier one.

B: 50 (9-7)*7

A: 50 (9-7)*9

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1 If A is a fraction more than B, subtract B from A, and divide by B. For example, A 4 and B 2, A has 100 more than B

If B is a fraction less than A, subtract B from A and divide by A. For example, A 4, B 2, B is 50 less than A

If the number A is more than the number B, then the number A is 5 4 of the number B, so the number B is 4 5 of the number of the simple stove, and it is corrected.

Then the number B is 1 5