class 7 th maths ch 2
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1) 5/13 x 39/10 = 3/2
2) 7/4 ÷ 21 = 7/4 x 1/24 = 1/12
3) 2⅕ x 3½ = 11/5 x 7/2 = 77/10
4) 3½ ÷ 3/5 = 7/2 x 5/3 = 35/6
5) 1/5 x 15/28 = 3/28
6) 9/16 ÷ 27/8 = 9/16 x 8/27 = 1/6
7) 3/5 x 25 = 15
8) 15 ÷ 5/7 = 15 x 7/5 = 21
9) 1⅔ ÷ 3⅕ = 5/3 ÷ 16/5 = 5/3 x 5/16 = 25/48
10) 3/5 x 7/8 = 21/40
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