Q.3 Multiply the following fractions:
(i) (2/5) × \(5\frac{1}{4} \)
(ii) \(6\frac{2}{5} \) ×7/9
(iii) 3/2× \(5\frac{1}{3} \)
(iv) 5/6×\(2\frac{3}{7} \)
(v) \(3\frac{2}{5} \) ×4/7
(vi) \(2\frac{3}{5} \)× 3
(vii)\(3\frac{4}{7} \) × 3/5


Answer :

(i) 2/5×21/4=42/20= \(\frac{42÷2}{20÷2} \)= 21/10
=\(2\frac{1}{10} \)
(ii) 32/5×7/9=224/45= \(4\frac{44}{45} \)
(iii) 3/2 ×16/3 =48/6=8
(iv) 5/6×17/7=85/42= \(2\frac{1}{42} \)
(v) 17/5×4/7=68/35= \(1\frac{33}{35} \)
(vi)13/5×3=39/5= \(7\frac{4}{5} \)
(vii) 25/7×3/5 ÷75/35=\(\frac{75÷5}{35÷5}=15/7=2\frac{1}{7} \)

NCERT solutions of related questions for Fractions and Decimals

NCERT solutions of related chapters class 7 maths

NCERT solutions of related chapters class 7 science