a)7/3k=9/2*10/9
7/3k=5
3/7*7/3k=3/7*5
k=15/7
b)17/2m=11/3*12/11
17/2m=4
2/17*17/2m=2/17*4
m=8/17
в)y*1целую 1/4=3целых1/8*4/5
5/4у=5/2
4/5*5/4у=4/5*5/2
у=2
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a)7/3k=9/2*10/9
7/3k=5
3/7*7/3k=3/7*5
k=15/7
b)17/2m=11/3*12/11
17/2m=4
2/17*17/2m=2/17*4
m=8/17
в)y*1целую 1/4=3целых1/8*4/5
5/4у=5/2
4/5*5/4у=4/5*5/2
у=2