Question

Q4.Add or Subtract:-
(a) 7/3 + 3/2
(c) 7/8 - 3/4
(b) 3/4 + 2/5
(d) 5/8 - 1/2​

Answer 1

Answer:

Q4. (a) 7/3+3/2.

7×2+3×3/6. (Because LCM of 3 & 2 is 6).

14+9/6.

23/6.

(b) 7/8-3/4.

7×1-3×2/8. (Because LCM of 8 & 4 is 8).

7-6/8.

1/8.

(c) 3/4+2/5.

3×5+2×4/20. (Because LCM of 4 & 5 is 20).

15+8/20.

23/20.

(d) 5/8-1/2.

5×1-1×4/8. (Because LCM of 8 & 2 is 8).

5-4/8.

1/8.