Explanation:
3/5 - 1/3 = 4 /15
5/6 - 2/3 = 5/6 - 4/6 = 1/6
7/9 - 2/3 = 7/9 - 6/9 = 1/9
5/8 - 1/6 = (15 - 4) /24 = 11/24
(All the above ones I have taken common factor and subtracted them)
5 x 9/10 = 45/10 = 9/2 (simplified)
2/7 x 3 = 6/7
3 x 2/15 = 6/15
4x 2/6 = 8/6 = 4/3 (simplified form)
Hope this helps!!!