Find:
$\frac{- 6}{1 3} - (\frac{- 7}{1 5})$

Question

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Answer 1

$\frac{- 6}{1 3} - (\frac{- 7}{1 5}) = \frac{- 6 \times 1 5}{1 3 \times 1 5} - (\frac{- 7 \times 1 3}{1 5 \times 1 3}) = \frac{- 9 0}{1 9 5} - (\frac{- 9 1}{1 9 5}) = \frac{- 9 0 - ( 9 1 )}{1 9 5} = \frac{- 9 0 + 9 1}{1 9 5} = \frac{1}{1 9 5}$
L.C.M of $13$ and $15$ is $195$

Answer 2

\frac{- 6}{1 3} - (\frac{- 7}{1 5}) = \frac{- 6 \times 1 5}{1 3 \times 1 5} - (\frac{- 7 \times 1 3}{1 5 \times 1 3}) = \frac{- 9 0}{1 9 5} - (\frac{- 9 1}{1 9 5}) = \frac{- 9 0 - ( 9 1 )}{1 9 5} = \frac{- 9 0 + 9 1}{1 9 5} = \frac{1}{1 9 5}

L.C.M of

13

and

15

is

195