Maths

Eg:- $82 $ and $52 $

Let's see how to add these two :

i.e. $82 +52 $

Since, the denominators are not same. Cross multiply the numbers as shown

i.e. $8×52×5+2×8 $

$=4010+16 =4026 $

$=2013 $.

Let's see how to subtract the above two unlike fractions

i.e. $52 −82 $

$=8×52×8−2×5 $ ....... Cross multiplying the numbers

$=4016−10 $

$=406 $ $=203 $

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