Page 60 - Math Skill - 5

58 Maths

To get an equivalent fraction of lower numerator (or denominator):

™ Obtain the common factor as above.
™ Divide the higher numerator and denominator by the common factor.

Let’s Attempt

15 3
Example 1: Are and equivalent fractions?
20 4

Solution: 15 3 ⇒ 15 × 4 = 60; 20 × 3 = 60
20 4
Products are equal. Thus, they are equivalents.

15 3
and are equivalent fractions.
20 4

Let’s Attempt

Example 2: Fill in the correct numerator.
2
=
3 15

Solution: Rule 1: Divide higher denominator by lower denominator.

15 ÷ 3 = 5 ⇒ Common factor = 5
Rule 2: Multiply lower numerator and denominator by common factor, i.e., 5.

25× = 10 ⇒ \ 2 = 10
35 15 3 15
×

Exercise 5.1

1. Write the fractional number and the fraction representing the shaded portion.

5 Fraction = _____
Fraction =
(a) 6 (b)
Fractional number Fractional number = _____
= Five-sixths

(c) Fraction = _____ (d) Fraction = _____
Fractional number = _____ Fractional number = _____

2. Are all these fractions equivalent? Answer in ‘YES’ or ‘NO’.
3 9 49 7 27 3
(a) and (b) and (c) and
4 12 63 11 36 4