Question

Express 42/-8 as a rational number with numerator 21. Give full explanation.

Answer 1

Answer:

$\frac{42}{ - 8}$

Dividing numerator & Denominator both by 2 we get

$\frac{21}{ - 4}$

Which is the required answer

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Answer 2

Answer:

given, 42/-8

it can be written as

$\frac{ - 42}{8}$

by cancelling it becomes

$\frac{ - 21}{4}$

ok

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