First , we write the rational numbers in their standard form. 18/ 25× 1/ 1 = 18/25 ∴5/12× 18/ 25 = 5/12×18/25 = 5 × 18/12 × 25 = 1 × 3/2 × 5 = 3/10Hence , ...

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Standard VII

Mathematics

Standard Form of Rational Numbers

Simplify .5/1...

Question

Simplify .
$\frac{5}{12} \times \frac{- 18}{- 25}$

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Solution

First , we write the rational numbers in their standard form.
$\frac{- 18}{- 25} \times \frac{- 1}{- 1} = \frac{18}{25}$
$∴ \frac{5}{12} \times \frac{- 18}{- 25} = \frac{5}{12} \times \frac{18}{25} = \frac{5 \times 18}{12 \times 25} = \frac{1 \times 3}{2 \times 5} = \frac{3}{10}$
Hence , $\frac{5}{- 12} \times \frac{- 18}{- 25} = \frac{3}{10} .$

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Simplify .512×-18-25

First , we write the rational numbers in their standard form.-18-25×-1-1=1825 ∴512×-18-25=512×1825=5×1812×25=1×32×5=310Hence , 5-12×-18-25=310.

Simplify .
$\frac{5}{12} \times \frac{- 18}{- 25}$