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(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=\(\frac{75÷5}{35÷5}=15/7=2\frac{1}{7} \)

- Q.1 Find: (i) 1/4 of (a) 1/4 (b) 3/5 (c) 4/3 (ii) 1/7 of (a) 2/9 (b) 6/5 (c) 3/10
- Q.2 Multiply and reduce to lowest form (if possible): (i) 2/3× \(2/frac{2}{3} \) (ii) 2/7×7/9 (iii) 3/8× 6/4 (iv) 9/5×3/5 (v) 1/3×15/8 (vi)11/2 × 3/10 (vi) 4/5× 12/7
- Q.4 Which is greater: (i) (2/7) of (3/4) or (3/5) of (5/8) (ii) (1/2) of (6/7) or (2/3) of (3/7)
- Q.5 Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent saplings is 3/4 m. Find the distance between the first and the last sapling.
- Q.6 Lipika reads a book for \(1\frac{3}{4} \)hours everyday. She reads the entire book in 6 days. How many hours in all were required by her to read the book?
- Q.7 A car runs 16 km using 1 litre of petrol. How much distance will it cover using \(2\frac{3}{4} \) litres of petrol.
- Q.8 (a) (i) provide the number in the box [ ], such that (2/3) × [ ] = (10/30) (ii) The simplest form of the number obtained in [ ] is (b) (i) provide the number in the box [ ], such that (3/5) × [ ] = (24/75) (ii) The simplest form of the number obtained in [ ] is

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