Question

#23,(а,в),27, 22 пожалуйста:)​

Answer 1

Пошаговое объяснение:

х+ 1/8=1/2

х=4/(2•4) -1/8=(4-1)/8=3/8

3/4 +х=3/2

х=(3•2)/(2•2) -3/4=(6-3)/4=3/4

х- 1/3=1 1/6

х=1 1/6 +2/(3•2)=1 3/6=1 1/2

7/10 -х=1/2

х=7/10 -5/(2•5)=(7-5)/10=2/10=1/5

4/21 •21/32=4/32=1/8

5/11 •4/15=4(11•3)=4/33

2/5 ÷3/10=2/5 •10/3=(2•2)/3=4/3=1 1/3

7/9 ÷14/5=7/9 •5/14=5/(9•2)=5/18

4/21 ÷6/7=4/21 •7/6=4/(3•6)=2/(3•3)=2/9

7/45 ÷5/9=7/45 •9/5=7/(5•5)=7/25