Question

Perform the indicated operation and, if possible, simplify. Please show all of your work.
2/9+(-3/7)

Answer 1

Take the LCM of 9 and 7 first..

Answer 2

+(-) = -

Answer 3

ist multiply denominator of 1st term with numerator of 2nd term
multiply denominator of 2nd term with numerator of 1st term

Answer 4

\[\frac{2}{9} - \frac{3}{7}\]

LCM of 9 and 7 is 63..

Answer 5

next add the terms in numerators also use +(-) = -
next mul the denominators

Answer 6

cancel terms in num and denominator if any

Answer 7

\[\frac{2 \times 7 - 3 \times 9}{63} = \frac{14 - 27}{63} = ??\]

Answer 8

13 4/7

Answer 9

I think you are getting negative numerator..

14 - 27 = ??

Answer 10

-13

Answer 11

\[\frac{-13}{63}\]

Answer 12

So this is your answer..