Question

(2/7+3/14)*(7.5-13.5)=

Answer 1

(2/7+3/14)*(7,5-13,5)=-3
1) 2/7+3/14=4/14+3/14=7/14=1/2=0,5
2) 7,5-13,5=-6
3) 0,5*(-6)=-3

Answer 2

$( frac{2}{7} + frac{3}{14} )*(7,5-13,5)= frac{4+3}{14} *(-6)= frac{7}{14} *(-6)=- frac{1}{2} *6=-3$