(2/15+7/12)*30/43-(2:2 1/2*5/32)

Question

(2/15+7/12)*30/43-(2:2 1/2*5/32)

Answer 1

(2/15+7/12)*30/43-(2:2 1/2*5/32)=3/8

1)2/15+7/12=8/60+35/60=43/60
2)2÷2 1/2=2/1÷5/2=2/1×2/5=4/5
3)4/5×5/32=1/1×1/8=1/8
4)43/60×30/43=1/2×1/1=1/2
5)1/2-1/8=8/16-2/16=6/16=3/8

Answer 2

(2/15 + 7/12) * 30/43 - (2 : 2 1/2 * 5/32) = 3/8
1) 2/15 + 7/12 = (8+35)/60 = 43/60
2) 2 : 2 1/2 = 2/1 : 5/2 = 2/1 * 2/5 = 4/5
3) 4/5 * 5/32 = 1/8
4) 43/60 * 30/43 = 1/2
5) 1/2 - 1/8 = (4-1)/8 = 3/8