Ответ:
Пошаговое объяснение:
8,5 - 1/3 = 85/10 - 1/3 = 85*3/10*3 - 1*10/3*10 = 255/30 - 10/30 = (255-10)/30 = 245/30 = 5*49/5*6 = 49/6 = 8 1/6
4 1/9 +1,8 = 4 1/9 + 18/10 = 4 10/90 + 162/90 = 4 (10+162)/90 = 4 172/90 =
4 86/45 = 5 41/45
1/9 * 0,12 = 1/9 * 12/100 = 12/900 = 6*2/6*2*75 = 1/75
6/7 : 6/10 = 6/7 * 10/6 = 6*10/7*6 = 10/7 = 1 3/7
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Ответ:
Пошаговое объяснение:
8,5 - 1/3 = 85/10 - 1/3 = 85*3/10*3 - 1*10/3*10 = 255/30 - 10/30 = (255-10)/30 = 245/30 = 5*49/5*6 = 49/6 = 8 1/6
4 1/9 +1,8 = 4 1/9 + 18/10 = 4 10/90 + 162/90 = 4 (10+162)/90 = 4 172/90 =
4 86/45 = 5 41/45
1/9 * 0,12 = 1/9 * 12/100 = 12/900 = 6*2/6*2*75 = 1/75
6/7 : 6/10 = 6/7 * 10/6 = 6*10/7*6 = 10/7 = 1 3/7