Question

Вычислите: А) 5 1/2+1 1/6= Б) 2 4/9 + 3 1/2= В) 5 7/12 + 1 7/8= Г) 6 2/5 - 1 2/5= Д) 4 5/7 - 1 2/3= Е) 3 1/2 - 1 2/3=

Answer 1

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Answer 2

А) 5 1/2 + 1 1/6 = (52+1)/2 + (16+1)/6 = 11/2 + 7/6 = (33+14)/6 = 47/6

Ответ: 47/6

Б) 2 4/9 + 3 1/2 = (29+4)/9 + (32+1)/2 = 22/9 + 7/2 = (44+63)/18 = 107/18

Ответ: 107/18

В) 5 7/12 + 1 7/8 = (512+7)/12 + (18+7)/8 = 67/12 + 15/8 = (134+45)/24 = 179/24

Ответ: 179/24

Г) 6 2/5 - 1 2/5 = (6-1) + (2/5 - 2/5) = 5

Ответ: 5

Д) 4 5/7 - 1 2/3 = (47+5)/7 - (13+2)/3 = 33/7 - 5/3 = (99-35)/21 = 64/21

Ответ: 64/21

Е) 3 1/2 - 1 2/3 = (32+1)/2 - (13+2)/3 = 7/2 - 5/3 = (21-10)/6 = 11/6

Ответ: 11/6