# Ex.8.2 Q2 Compairing Quantities - NCERT Maths Class 7

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## Question

Convert the given decimal fractions to per cents.

a) $$0.065$$

(b) $$2.1$$

(c) $$0.02$$

(d) $$12.35$$

Video Solution
Comparing Quantities
Ex 8.2 | Question 2

## Text Solution

What is Known?

Numbers in the decimal form.

What is Unknown?

Per cent form of the given numbers.

Reasoning:

First convert the decimal form into fractions and after that multiply the fraction with $$100$$ to convert it into percentage.

Steps:

(a) \begin{align}&0.65 = \frac{{65}}{{100}}\\ &\frac{{65}}{{100}} \times 100 = 65\%\end{align}

(b) \begin{align}&2.1 = \frac{{21}}{{10}}\\ &\frac{{21}}{{10}} \times 100 = 210\%\end{align}

(c) \begin{align}&0.02 = \frac{2}{{100}}\\ &\frac{2}{{100}} \times 100 = 2\%\end{align}

(d) \begin{align}&12.35 = \frac{{1235}}{{100}}\\ &\frac{{1235}}{{100}} \times 100 = 1235 \%\end{align}

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