Write down the reciprocal of:(i) (5/8)(ii) 7(iii) (1/12)(iv) [12(3/5)]

1.	Write down the reciprocal of:(i) (5/8)(ii) 7(iii) (1/12)(iv) [12(3/5)]
Answer» (i) (5/8) Solution:- Reciprocal of (5/8) is (8/5) [∵ ((5/8) × (8/5)) = 1] (ii) 7 Solution:- Reciprocal of 7 is (1/7) [∵ ((7/1) × (1/7)) = 1] (iii) (1/12) Solution:- Reciprocal of (1/12) is (12/1) [∵ ((1/12) × (12/1)) = 1] = 12 (iv) [12(3/5)] Solution:- Convert mixed fraction into improper fraction, = (63/5) Reciprocal of (63/5) is (5/63) [∵ ((63/5) × (5/63)) = 1]

Answer»

(i) (5/8)

Solution:-

Reciprocal of (5/8) is (8/5) [∵ ((5/8) × (8/5)) = 1]

(ii) 7

Solution:-

Reciprocal of 7 is (1/7) [∵ ((7/1) × (1/7)) = 1]

(iii) (1/12)

Solution:-

Reciprocal of (1/12) is (12/1) [∵ ((1/12) × (12/1)) = 1]

= 12

(iv) [12(3/5)]

Solution:-

Convert mixed fraction into improper fraction,

= (63/5)

Reciprocal of (63/5) is (5/63) [∵ ((63/5) × (5/63)) = 1]

Discussion