Find the ratio of the following :
(a) 81 to 108
(b) 98 to 63
(c) 33 km to 121 km
(d) 30 minutes to 45 minutes.

AcademicMathematicsNCERTClass 6

To do:

We have to find the ratios of :

(a) 81 to 108

(b) 98 to 63

(c) 33  km to 121 km

(d) 30 minutes to 45 minutes.

Solution:

(a) We know that,

The ratio of 81 to 108 can be obtained by dividing 81 by 108

$=\frac{81}{108}$   

$= \frac{3}{4}$

$=3:4$

The ratio of 81 to 108 is $3:4$.

(b) We know that,

The ratio of 98 to 63 can be obtained by dividing 98 by 63

$=\frac{98}{63}$   

$= \frac{14}{9}$

$=14:9$

 The ratio of 81 to 108 is $14:9$.

(c)  We know that,

The ratio of $33\ km$ to $121\ km$ can be obtained by dividing$33\ km$ by $121\ km$

$=\frac{33\ km}{121\ km}$   

$= \frac{3}{11}$

$=3:11$

 The ratio of $33\ km$ to $121\ km$ is $3:11$.

(d)  We know that,

The ratio of 30 minutes to 45minutes can be obtained by dividing 30 minutes by 45 minutes

$=\frac{30\min}{45\min}$ 

$= \frac{2}{3}$

$=2:3$

 The ratio of 30 minutes to 45 minutes is $2:3$.

raja
Updated on 10-Oct-2022 13:36:48

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