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b)15x3 2/5=15x17/5=3x17=51
c)4 1/5x1 2/3=21/5x5/3=7
d)16:4/7=16x7/4=4x7=28
e)2 1/4:3=9/4x1/3=3/4x1=3/4
f)3 3/4:3 1/3=15/4:10/3=15/4x3/10=9/8=1 1/8
g)(5 3/5:20/14):2/3=(28/5x14/20)x3/2=(7/5x14/5)x3/2=98/25x3/2=49/25x3 = 147/25=5 22/25