A boy spent 1/4 of his money on sweets and 3/8 on bus fares. What fraction of his money is left?

What you need is a common denominator, so the two bottom numbers are the same. So you want both bottom numbers, in this case, to be 8.

So you times the 4 by 2, remembering that whatever you do to the bottom you do to the top, so you times the one by 2 as well giving you 2/8.

2/8 + 3/8 is 5/8 which is what he has spent of his money.

8/8 is his full amount, without anything spent.

So 8/8 - 5/8 is 3/8.

He has 3/8 of his money left :)

A boy spend 1/3 of his money on food and 2/5on book what fraction does he have left

4/15

Mad people

0/0 0/0

Nonesense

To find the fraction of money that the boy has left, we can subtract the fractions spent from 1.

First, let's find the total fraction of money the boy spent on sweets and bus fares:
1/4 + 3/8

To add fractions, we need a common denominator. The least common multiple of 4 and 8 is 8.

So, let's convert both fractions to have a denominator of 8:
1/4 = 2/8 (multiplied numerator and denominator by 2)
3/8 = 3/8

Now we can add the fractions:
2/8 + 3/8 = 5/8

So, the boy spent 5/8 of his money.

To find the fraction of money that he has left, we subtract the fraction spent from 1:
1 - 5/8

To subtract fractions, we also need a common denominator (8 in this case):
1 = 8/8 (multiplied numerator and denominator by 8)

Now we can subtract the fractions:
8/8 - 5/8 = 3/8

Therefore, the fraction of money the boy has left is 3/8.