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a) 4/5: 2 = 4/5* 1/2 = 2/5
b) 2/7: 3 = 2/7* 1/3 = 2/21
c) 4/7: 2 = 4/7* 1/2 = 2/7
d) 5/9: 3 = 5/9* 1/3 = 5/27
e) 1 1/2: 3 = 3/2* 1/3 = 1/2
f) 2 1/4: 6 = 9/4* 1/6 = 3/8
g) 4 1/5: 7 = 21/5* 1/7 = 3/5
h) 2 4/7: 9 = 18/7* 1/9 = 2/7
i) 20 2/3: 31 = 62/3* 1/31 = 2/3
j) 10 1/5: 9 = 51/5* 1/9 = 17/15 = 1 2/15
k) 10 2/11: 21 = 112/11* 1/21 = 11/21
l) 11/99: 15 = 11/99* 1/15 = 1/135
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