Question

Me ajude a calcular.
1/2+3/7=

-2/3+4/9=

5/3+(-1/2=

-1/3+(-1)=

Answer 1

Explicação passo-a-passo:

1/2 + 3/7 = (7 + 2)/14

= 9/14

- 2/3 + 4/9 = ( - 6 + 4 )/9

= - 2/9

5/3 + (- 1/2) = 5/3 - 1/2

= (10 - 5)/6

= 5/6

- 1/3 + ( - 1) = - 1/3 - 1

= - 4/3