Ответы на вопрос:
54/72= 3/4= 0,75 75/120 = 5/8=0,625 17/51=1/3 = 0,3(3) 150/180=5/6=0,83(3) 18*13/39*6= 16*35/42*12= 35/84
А)54: 72=27: 36=8: 12=2: 3 75: 120=15: 24=5: 8 17: 51 150: 180=15: 18=5: 6 б)18*13: 39*6=18*1: 3*6=18: 18=1 6*35: 42*12=1*35: 42*2=35: 84
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