2/5 is smaller than 2/4
4/5 + 2/15 = 14/15
2/5 = 6/15 + 4/15 = 10/15 = 2/3
15/2*4 = 30
4/30 just factor out a 2 2/15 ------ so 2/15 = 2/15 ========
(2/3) ÷ (4/15) = (2/3) x (15/4) = 30/12 = 5/2 = 2.5
2/9 × 4/15 = 8/135
It is smaller because 4 isn't half of 9 but 1 is half of 2.
12/15 - 10/15 = 2/15
15/8 ÷ 3/4 = 5/2 or 21/2
2/3
The answer is 6/15. Hope I helped :-)