The difference between the greatest and smallest fraction amongst \frac{6}{7}, \frac{8}{9}, \frac{9}{10}, \frac{7}{8} is :

CTET 2 Math and Science Sep 2015 Paper

Question : 52 of 120

Marks: +1, -0

The difference between the greatest and smallest fraction amongst

\;\;{6}/{7},\;\;{8}/{9},\;\;{9}/{10},\;\;{7}/{8}

is :

Solution:

The given fraction

\;\;{6}/{7},\;\;{8}/{9},\;\;{9}/{10},\;\;{7}/{8}

The fraction can be written as

\;\;{6}/{7}=0.85\;\;\;\;\;\;\;{9}/{10}=0.9

\;\;{8}/{9}=0.88\;\;\;\;\;\;\;{7}/{8}=0.875

The smaller fraction

=9/10

The smallest fraction

=6/7

Required difference

=9/10-6/7

=\;\;{63-60}/{70}=\;\;{3}/{70}

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