Question

add the following
solve with lcm

1. 7/-9 and -3/4
2. -9/-53 and 5/9
type full answer ​

Answer 1

Answer:

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Answer 2

ok :-

1.

$\frac{7}{ - 9} + \frac{ - 3}{4}$

-›

$\frac{ - 7}{9} + \frac{ - 3}{4}$

LCM of 9 and 4= 36

$\frac{ - 7 \times 4}{9 \times 4} + \frac{ - 3 \times 9}{4 \times 9}$

=

$\frac{ - 28}{36} + \frac{ - 27}{36}$

by adding it=

$\frac{ - 55}{36}$

2. it's in the attachment

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