Question

three-quarters of a number is. 15 work out four-fifths of the number.

Answer 1

3/4 of X = 15

Multiplying out gives;

3X = 4x15

3X= 60

X = 20

Therefore, 4/5 of 20

Putting X = 20 we have;

4/5 x 20 = 16

so the answer is 16

Answer 2

The number is 20 and four-fifths of the number is 16 if three-quarters of a number is 15.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:

Three-quarters of a number is. 15

Let's suppose the number is x:

Then,

3x/4 = 15

3x = 15×4

3x = 60

x = 20

Four fifth of the number = (4×20)/5 = 16

Thus, the number is 20 and four-fifths of the number is 16 if three-quarters of a number is 15.

Learn more about the fraction here:

brainly.com/question/1301963

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