e) 6 3/5·7 1/6 - 2 1/6 · 6 3/5 ж) 9 3/8 · 2 5/7 - 2 5/7 · 7 3/8з) 3 3/4 · 3 3/4 + 3 3/4 · 1/4. Created by leragordeeva200. matematika-ru

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e) 6 3/5·7 1/6 - 2 1/6 · 6 3/5
ж) 9 3/8 · 2 5/7 - 2 5/7 · 7 3/8
з) 3 3/4 · 3 3/4 + 3 3/4 · 1/4

alex5666 E) 6 3/5·7 1/6 - 2 1/6 · 6 3/5=33\5*(43\6-13\6)=33\5*30\6=33\5*5=33\5*5\1=165\5=33
ж) 9 3/8 · 2 5/7 - 2 5/7 · 7 3/8=19\7*(81\8-61\8)=19\7*20\8=380\56=95\14=6 11\14
з) 3 3/4 · 3 3/4 + 3 3/4 · 1/4=15\4*(15\4+1\4)=15\4*16\4=15\4*4=15\4*4\1=60\4=15

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ФАИНА1984

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Е)(63•6)•(71•5)-(21•5)•(63•6)=378•355-105•378=134190-39690=94500

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