# CLASS-6SUBTRACTION OF UNLIKE FRACTION

SUBTRACTION OF FRACTIONS

Subtraction of ‘UNLIKE FRACTION’

7               5

Q.1)   Subtract    --------  -  --------

12              24 Step.1)  Take Denominator of ‘Unlike Fraction’ for finding LCM and convert into ‘Like Fraction’ and consider their ‘Denominator’ as 'common Denominator’ and placed at Denominator position of newly obtained Fraction.

LCM of 12 and 24 = 4 x 3 x 1 x 2 = 24

7          7 X 2                                         14

------- = ---------- ( Where  24 ÷ 12 = 2 )  =  ---------

12         12 X 2                                        24

5           5 X 1                                    5

-------- = --------- ( Where 24 ÷ 24 = 1 ) = --------

24          24 X 1                                  24

Step.2) Add ‘Numerator’ of both fraction and result to be placed at ‘Numerator’.

7              5

-------  -  --------

12             24

14  -   5                9

=  --------------   =   --------        (Ans.

24                    24

Subtraction of their Numerator of given Fraction

Subtraction of Like Fraction = ----------------------------------------

Common Denominator