Question

verify the following
a. (-3/10+5/-7) + 7/9 = -3/10 + (-5/7+7/9)
b. -4+(-5/6+-7/8) = (-4 + -5/6) + -7/8​

Answer 1

I will do it later and send it here

verify the following

a. (-3/10+5/-7) + 7/9 = -3/10 + (-5/7+7/9)

b. -4+(-5/6+-7/8) = (-4 + -5/6) + -7/8