Question

-(3,5 - ( - 4целых 2/3 ) ) - ( - 2 целых 2/15)
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- ( 1 целая 1/20 - ( - 4,1)

Answer 1

1)3.5+4 23=3 12+4 23=7+(1*3/6+2*26)=7+76=8 16
2)-8 16+2 215=-6+(-16+215)=-6-(-2*530+2*2/30)=-6-630=       =-6 15
3) 1 120+4 110=5+(120+220)=5+320=5 320
4) - 6 15:(-5 320)=315:10320=315*20/103=124103=1 21103