Should be subtracted from -2-3 to get 5-6-

Let the number to be subtracted be x. Then, 2/3 x=5/6 ⇒ 2/3=5/6+x ⇒ x= 2/3 5/6= 2/3+ 5/6 By taking the LCM, we get, =( 4)+( 5)/6= 9/6= 3/2 Hence, the requir ...

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Standard VIII

Mathematics

Associative Property of Rational Numbers

should be sub...

Question

$should be subtracted from \frac{- 2}{3} to get \frac{5}{6} ?$

\frac{2}{3}

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\frac{- 3}{2}

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\frac{3}{2}

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Solution

The correct option is B $\frac{- 3}{2}$
$Let the number to be subtracted be x .$

$Then, \frac{- 2}{3} - x = \frac{5}{6} \Rightarrow \frac{- 2}{3} = \frac{5}{6} + x \Rightarrow x = \frac{- 2}{3} - \frac{5}{6} = \frac{- 2}{3} + \frac{- 5}{6} By taking the LCM, we get, = \frac{(- 4) + (- 5)}{6} = \frac{- 9}{6} = \frac{- 3}{2}$

$Hence, the required number is \frac{- 3}{2} .$

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should be subtracted from −23 to get 56?

The correct option is B −32Let the number to be subtracted be x. Then,−23−x=56⇒−23=56+x⇒x=−23−56=−23+−56By taking the LCM, we get, =(−4)+(−5)6=−96=−32 Hence, the required number is −32.

$should be subtracted from \frac{- 2}{3} to get \frac{5}{6} ?$