вычислите: 1) (1и1/2+2и2/3-3и3/4)*3и3/5 2) 14-15и1/8:2. Created by sabina002017. algebra-ru

8:2...

sabina002017 @sabina002017

August 2022 1 12 Report

вычислите:

1) (1и1/2+2и2/3-3и3/4)*3и3/5
2) 14-15и1/8:2

Answers & Comments

22may 1) (1 1/2+ 2 2/3 - 3 3/4)·3 3/5=
(3/2+6/3-15/4)·18/5=
(18+24-45)/12 · 18/5= -3/12 · 18/5= -1/4·18/5=-1/2·9/5=-9/10=-0,9

2) (14-15 1/8):2= (14-120/8):2=((112-120)/8):2=-8/8 : 2=-1:2=-1/2

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