Convert given per cents to decimal fractions and also to fractions in simplest forms:
$(a).\ 25$ %
$(b).\ 150$ %
$(c).\ 20$ % $(d).\ 5$ %

AcademicMathematicsNCERTClass 7

Given: $(a).\ 25$ %  $(b).\ 150$ %  $(c).\ 20$ % $(d).\ 5$ %

To do: To convert given per cents to decimal fractions and also to fractions in simplest forms.

Solution:

$(a).\ 25$ %

The decimal fraction will be,

$=\frac{25}{100}$

$=0.25$

The simplest form of the fraction will be

$\frac{25}{100}=\frac{5}{100}$

$=\frac{1}{4}$

$(b).\ 150$ %

The decimal fraction will be,

$=\frac{150}{100}$

$=1.5$

The simplest form of the fraction will be

$\frac{150}{100}=\frac{30}{20}$

$=\frac{3}{2}$

$(c). 20$ %

The decimal fraction will be

$\frac{20}{100}=\frac{2}{10}$

$=0.20$

The simplest form of the fraction will be

$\frac{20}{100}=\frac{2}{10}$

$=\frac{1}{5}$

$(d).\ 5$ %

The decimal fraction will be

$=\frac{5}{100}$

$=0.05$ %

The simplest form of the fraction will be

$\frac{5}{100}=\frac{1}{20}$
raja
Updated on 10-Oct-2022 13:35:14

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