15/2*4 = 30
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(2/3) * (4/5) = 8/15
15/8 times 2/1 = 30/8 = 15/4 or 3 and 3/4 = 3.75
If you mean (2/5 times 30) minus (4/3 times 15/8) then the answer is 19/2 or 9.5
1/6 * 4/5 = 4/30 = 2/15
It is: 3/4 times 8/15 = 2/5 in its lowest terms