2 3/7*5 11/12-2 3/7*4 11/12 +2 4/7:5/3+2 4/7 : 5/2. Created by VictoriaNyancat. matematika-ru

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June 2022 2 12 Report

2 3/7*5 11/12-2 3/7*4 11/12 +2 4/7:5/3+2 4/7 : 5/2

prettypushkova

= 2 3/7 * (5 11/12 - 4 11/12) + 2 4/7 * (3/5 + 2/5) = 2 3/7 * 1 + 2 4/7 * 1 = 4 7/7 = 5.
Ответ: 5.

1 votes Thanks 0

Грет85 17/7*71/12=1207/84
17/7*59/12=1003/84
18/7*3/5=54/35
18/7*2/5=36/35
1207/84-1003/84=204/84=51/21
54/35+36/35=90/35
51/21+90/35=525/105=5

1 votes Thanks 1

prettypushkova Очень сложно. Надо просто вынести общий множитель за скобки.