Question

CALCULE E SIMPLIFIQUE O RESULTADO;

A)1/5+7/5+3/5
B)7/3+8/4+2/3
C)5/2-1/7-5/10​

Answer 1

Explicação passo-a-passo:

A)

1/5+7/5+3/5=(1+7+3)/5

1/5+7/5+3/5=(8+3)/5

1/5+7/5+3/5= 11/5 <<=

B)

7/3+8/4+2/3=(28+24+8)/12

7/3+8/4+2/3=(28+32)/12

7/3+8/4+2/3=60/12

7/3+8/4+2/3= 5 <<=

C)

5/2-1/7-5/10=(175-10-35)/70

5/2-1/7-5/10=(175-45)/70

5/2-1/7-5/10=130/70 (simplificando)

5/2-1/7-5/10=13/7 <<=