22...

milkaprost @milkaprost

July 2022 1 3 Report

Решите пожалуйста .
-2/15-(- 7/5)
- 1 3/8 - 1/4
1 5/11 - 2 3/22

Answers & Comments

LyubaAlexandorovna 1) (-2/15)-(-7/5)=(-2/15)+(7*3)/*5*3)=(-2/15)+(21/15)=(-2+21)/15=19/15=1 4/15
2) (-1 3/8)-(1/4)=(-(1*8+3)/8)-(1*2)/(4*2)=(-11/8)-(2/8)=(-11-2)/8=-13/8=-1 5/8
3) 1 5/11-2 3/22=(1*11+5)/11-(2*22+3)/22=16/11-47/22=(16*2)/(11*2)-47/22=
=32/22-47/22=(32-47)/22=-15/22

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