2/15*5 ,2/5*5,1/15*5,10/75*5,2/3*5
2/15*5 = 2*5/152*1/3 = 2/3
2/5*5 = 2*5/5 = 2
1/15*5 = 1*5/15 = 1*1/3 = 1/3
10/75*5 = 10*5/75 = 50/75 = 2/3
2/3*5 = 2*5/3 = 10/3 = 3 1/3
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2/15*5 = 2*5/152*1/3 = 2/3
2/5*5 = 2*5/5 = 2
1/15*5 = 1*5/15 = 1*1/3 = 1/3
10/75*5 = 10*5/75 = 50/75 = 2/3
2/3*5 = 2*5/3 = 10/3 = 3 1/3