Page 124 - Mathematics_Std_4

Multiplication of fractions by whole numbers
This involves converting the whole number into fractions then
followed by the rule of multiplying fractions by fraction.

FOR ONLINE READING ONLY
Example 1

1 × = 4
5

Solution

When multiplying a whole number by a fraction, write the
whole number as a fraction:

4 = 4
1

Then, multiply numerators and denominators separately:
1 1 4
× = 4 ×
5 5 1
4
=
5

Therefore, 1 ×=4 4 .
5 5

Example 2

2 × =12
3

Solution
2 × =12 2 × 12
3 3 1
24
=
3

=8

Therefore, 2 × =12 8.
3

117

07/11/2024 14:05:24
MATHEMATICS STD 4 PB 2024.indd 117 07/11/2024 14:05:24
MATHEMATICS STD 4 PB 2024.indd 117