Question

(5/6-3/10):(3/10+2/5)=

Answer 1

1) 5/6 - 3/10 = 25/30 - 9/30 = 16/30 = 8/15
2) 3/10 + 2/5 = 3/10 + 4/10 = 7/10
3) 8/15 / 7/10 = = 8/15 * 10/7 = 16/21