Evaluate p - q given p -2 1-5 and q -1 1-3-A- 1 8-15B- -2 8-15C- -3 8-15D- 3 8-15

The correct option is C ( 38/15 )Given p= ( 21/5 ) and q= ( 11/3 ), p+q = ( 21/5 ) + ( 11/3 ) = 11/5 4/3___(converting mixed fraction to improper fra ...

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Standard VI

Mathematics

Addition of Rational Numbers

Evaluate p + ...

Question

Evaluate p + q given $p = (- 2 \frac{1}{5})$ and $q = (- 1 \frac{1}{3})$ .

1 \frac{8}{15}

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(- 3 \frac{8}{15})

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(- 2 \frac{8}{15})

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(3 \frac{8}{15})

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Solution

The correct option is B $(- 3 \frac{8}{15})$
Given $p = (- 2 \frac{1}{5})$ and $q = (- 1 \frac{1}{3})$ ,
$p + q = (- 2 \frac{1}{5}) + (- 1 \frac{1}{3}) = - \frac{11}{5} - \frac{4}{3}$ ___(converting mixed fraction to improper fraction)
$= - (\frac{53}{15}) = - 3 \frac{8}{15}$

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Q. Evaluate p + q given

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Q. If p +5q =28 and

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, then evaluate pq.

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Evaluate p + q given p=(−215) and q=(−113).

The correct option is B (−3815)Given p=(−215) and q=(−113), p+q=(−215)+(−113)=−115−43___(converting mixed fraction to improper fraction) =−(5315)=−3815

Evaluate p + q given $p = (- 2 \frac{1}{5})$ and $q = (- 1 \frac{1}{3})$ .

The correct option is B $(- 3 \frac{8}{15})$
Given $p = (- 2 \frac{1}{5})$ and $q = (- 1 \frac{1}{3})$ ,
$p + q = (- 2 \frac{1}{5}) + (- 1 \frac{1}{3}) = - \frac{11}{5} - \frac{4}{3}$ ___(converting mixed fraction to improper fraction)
$= - (\frac{53}{15}) = - 3 \frac{8}{15}$