Ответ:
1) 12/5 : 2/5 - 3.7= 12/5×5/2-3.7=6-3.7=2.3
2)1/2×5+7/2=5/2+7/2=6
3)13-3/5=62/5=12.4
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Ответ:
1) 12/5 : 2/5 - 3.7= 12/5×5/2-3.7=6-3.7=2.3
2)1/2×5+7/2=5/2+7/2=6
3)13-3/5=62/5=12.4