Question

1/3+(-6/7) +5/3 isequal to 1/3+(-6/4+5/3)

Answer 1

Answer:

1/3+(-6/7) +5/3:

1/3 +(-6/7)

= (1 × 7) - (6 × 3)/ 3 × 7

=  -11/21

-11/21 + 5/3

= (-11 × 3) + (5 × 21)/21 × 3

= 72/63

= 8/7

1/3+(-6/4+5/3):

(-6/4)+ 5/3

= (-6 × 3) + (5 × 4) / 4 × 3

= 2/12

= 1/6

1/3 + 1/6

=(1 × 6) + (1 × 3)/3 × 6

= 9/18

= 1/2

8/7≠ 1/2

1/3+(-6/7) +5/3 ≠ 1/3+(-6/4+5/3)