Find the sum of the rational numbers − 7 19 a n d − 2 57 . Options: A . &nbsp−2157 B . &nbsp−2357 C . &nbsp−2247 D . &nbsp−3247

Answer: Option B : B − 7 19 + − 2 57 = ( − 7 × 3 ) ( 19 × 3 ) + − 2 57 = − 21 57 + − 2 57 = − 23 57

Find the sum of the rational numbers −719 and "

Question

Find the sum of the rational numbers

\frac{- 7}{19} a n d \frac{- 2}{57} .

Options:

A . −2157

B . −2357

C . −2247

D . −3247

Answer: Option B
:
B

\frac{- 7}{19} + \frac{- 2}{57} = \frac{(- 7 \times 3)}{(19 \times 3)} + \frac{- 2}{57}

= \frac{- 21}{57} + \frac{- 2}{57} = \frac{- 23}{57}

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