Find: i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7iv) 2 1/3 ÷ 3/5 v) 3 1/2 ÷ 8/3 vi) 2/5 ÷ 1 1/2 vii) 3 1/5 ÷ 1 2/3 viii) 2 1/5 ÷ 1 1/5

Name: Find: i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7iv) 2 1/3 ÷ 3/5 v) 3 1/2 ÷ 8/3 vi) 2/5 ÷ 1 1/2 vii) 3 1/5 ÷ 1 2/3 viii) 2 1/5 ÷ 1 1/5
Uploaded: 2020-05-06T06:19:11Z
Duration: 4 min 15 s
Description: On dividing the following values i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7 iv) 2 1/3 ÷ 3/5 v) 3 1/2 ÷ 8/3 vi) 2/5 ÷ 1 1/2 vii) 3 1/5 ÷ 1 2/3 viii) 2 1/5 ÷ 1 1/5 we get, i) 4/5, ii) 2/3, iii) 3/8, iv) 35/9 = 3 8/9, v) 21/16 = 1 5/16, vi) 4/15, vii) 48/25 = 1 23/25, viii) 11/16 = 1 5/6

On dividing the following values i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7 iv) 2 1/3 ÷ 3/5 v) 3 1/2 ÷ 8/3 vi) 2/5 ÷ 1 1/2 vii) 3 1/5 ÷ 1 2/3 viii) 2 1/5 ÷ 1 1/5 we get, i) 4/5, ii) 2/3, iii) 3/8, iv) 35/9 = 3 8/9, v) 21/16 = 1 5/16, vi) 4/15, vii) 48/25 = 1 23/25, viii) 11/16 = 1 5/6

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Find: i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7
iv) \(2{\Large\frac{1}{3}}\) ÷ 3/5 v) \(3{\Large\frac{1}{2}}\) ÷ 8/3 vi) 2/5 ÷ \(1{\Large\frac{1}{2}}\)
vii) \(3{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{2}{3}}\) viii) \(2{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{1}{5}}\)

Solution:

To divide a fraction, we will reciprocate the second fraction and then multiply the fraction with the reciprocal. If one number is a whole number then we will convert it into a fraction by using 1 as the denominator.

(i) 2/5 ÷ 1/2 = 2/5 × 2/1

= 4/5

(ii) 4/9 ÷ 2/3 = 4/9 × 3/2

= 12/18

= 2/3

(iii) 3/7 ÷ 8/7 = 3/7 × 7/8

= 21/56

= 3/8

(iv) \(2{\Large\frac{1}{3}}\) ÷ 3/5 = \(2{\Large\frac{1}{3}}\) × 5/3

= 7/3 × 5/3

= 35/9 (improper fraction)

Converting 35/9 into mixed fraction, we get

35/9 = \(3{\Large\frac{8}{9}}\)

(v) \(3{\Large\frac{1}{2}}\) ÷ 8/3 = 7/2 × 3/8

= 21/16 (improper fraction)

Converting 21/16 into mixed fraction, we get

21/16 = \(1{\Large\frac{5}{16}}\)

(vi) 2/5 ÷ \(1{\Large\frac{1}{2}}\) = 2/5 × 2/3

= 4/15

(vii) \(3{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{2}{3}}\) = 16/5 ÷ 5/3

= 16/5 × 3/5

= 48/25 (improper fraction)

Converting 48/25 into mixed fraction, we get

48/25 = \(1{\Large\frac{23}{25}}\)

(viii ) \(2{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{1}{5}}\) = 11/5 ÷ 6/5

= 11/5 × 5/6

= 11/6 (improper fraction)

Converting 11/6 into mixed fraction, we get

11/6 = \(1{\Large\frac{5}{6}}\)

☛ Check: NCERT Solutions for Class 7 Maths Chapter 2

Video Solution:

Find: i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7 iv) \(2{\Large\frac{1}{3}}\) ÷ 3/5 v) \(3{\Large\frac{1}{2}}\) ÷ 8/3 vi) 2/5 ÷ \(1{\Large\frac{1}{2}}\) vii) \(3{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{2}{3}}\) viii) \(2{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{1}{5}}\)

NCERT Solutions Class 7 Maths Chapter 2 Exercise 2.4 Question 4

Summary:

On dividing the following values i) 2/5 ÷ 1/2 ii) 4/9 ÷ 2/3 iii) 3/7 ÷ 8/7 iv) \(2{\Large\frac{1}{3}}\) ÷ 3/5 v) \(3{\Large\frac{1}{2}}\) ÷ 8/3 vi) 2/5 ÷ \(1{\Large\frac{1}{2}}\) vii) \(3{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{2}{3}}\) viii) \(2{\Large\frac{1}{5}}\) ÷ \(1{\Large\frac{1}{5}}\) we get, i) 4/5, ii) 2/3, iii) 3/8, iv) 35/9 = \(3{\Large\frac{8}{9}}\), v) 21/16 = \(1{\Large\frac{5}{16}}\), vi) 4/15, vii) 48/25 = \(1{\Large\frac{23}{25}}\), viii) 11/16 = \(1{\Large\frac{5}{6}}\)

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