Вычислите.
Задача во вложениях.
9 1/2-11=19/2-22/2=-3/2=-1.5
4.05-3 13/20=4 5/100-73/20=4 1/20-73/20=81/20-73/20=8/20сократить на 2=4/10=0.4
20*0.03=0.6
0.6*0.4=0.24
-1.5:0.24=-6.25=- 6 25/100=-6 1/4 сократили на 25
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9 1/2-11=19/2-22/2=-3/2=-1.5
4.05-3 13/20=4 5/100-73/20=4 1/20-73/20=81/20-73/20=8/20сократить на 2=4/10=0.4
20*0.03=0.6
0.6*0.4=0.24
-1.5:0.24=-6.25=- 6 25/100=-6 1/4 сократили на 25