3целых 3/7умножить 3целых 1/2:(1целая 1/11- 27/55)
решить по дейставиям
3 3/7* 3 1/2:(1 1/11- 27/55)=20
1)1 1/11-27/55=12/11-27/55=60/55-27/55=33/55
2)3 3/7* 3 1/2=24/7*7/2=12
3)12: 33/55=12/1 * 55/33=20
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3 3/7* 3 1/2:(1 1/11- 27/55)=20
1)1 1/11-27/55=12/11-27/55=60/55-27/55=33/55
2)3 3/7* 3 1/2=24/7*7/2=12
3)12: 33/55=12/1 * 55/33=20