Question

Verify the following.
1.(-12/5+2/7=2/7+-12/5)
2.(-5/8+ -9/13=-9/13+ -5/8)​

Answer 1

Hi wonder girl

This is for ur beauty

Step-by-step explanation:

1 )

LHS=-12/5+2/7

take LCM of 5 and 7 and lcm is 35

-84+10/35

-74/35

RHS=2/7-12/5

10-84/35

-74/35

hence proved

Answer 2

$1. \: \: \: \: ( \frac{ - 12}{5} + \frac{2}{7} ) = ( \frac{2}{7} + \frac{ - 12}{5} ) \\ \: \: \: \: \: \: \: ( \frac{ - 84 + 10}{35} ) = ( \frac{10 + ( - 84)}{35} ) \\ \: \: \: \: \: \: \: \frac{ - 74}{35} = \frac{ - 74}{35}$

$2. \: \: \: ( \frac{ - 5}{8} + \frac{ - 9}{13} ) = ( \frac{ - 9}{13} + \frac{ - 5}{8} ) \\ \: \: \: \: \: \: \: \frac{ - 65 + ( - 72)}{104} = \frac{ - 72 + ( - 65)}{104} \\ \: \: \: \: \: \: \: \frac{ - 65 - 72}{104} = \frac{ - 72 - 65}{104} \\ \: \: \: \: \: \: \: \frac{ - 137}{104} = \frac{ - 137}{104}$