Question

Add `1 1/4` and `6 1/2`.

Answer 1

The L.C.M. of 4 and 2 = 4

2	2, 6
3	1, 3
	1, 1

Now, `1/2 - 1/6 = (1 xx 3)/(2 xx 3) - 1/6 = 3/6 - 1/6`

= `5/4 + (13 xx 2)/(2 xx 2) = 5/4 + 26/4 = (5 + 26)/4 = 31/4`

= `7 3/4`