Express 154 - 540 as a decimal without division-

The correct option is B 3.875 154+540 =1525×254+525×2540 =375100+1251000 =3.75+0.125 =3.875 . ...

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Byju's Answer

Standard VII

Mathematics

Writing Rational Numbers as Decimals

Express 154...

Question

Express $(\frac{15}{4} + \frac{5}{40})$ as a decimal without division.

3.75

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3.875

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3.85

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3.785

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Solution

The correct option is B $3.875$
$\frac{15}{4} + \frac{5}{40}$
$= \frac{15}{25} \times \frac{25}{4} + \frac{5}{25} \times \frac{25}{40}$
$= \frac{375}{100} + \frac{125}{1000}$
$= 3.75 + 0.125$
$= 3.875$ .

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