Question

1/20+1/30+1/5=
-11/12-5/8=
-7/10+5/6=
13/30+11/30+(4/30)=
2/1-7/6+3/4=
-7,8+(-1,6)-(-4,7=
4,0-(-1,5)+(-6,3)+1=

Answer 1

Resposta:

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