Answer :

A. Considering the rational number =


-12 = 2 × 2 × 3 × -1


72 = 2 × 2 × 2 × 3 × 3


H.C.F. = 12


To convert into it’s standard form,


Divide the numerator and denominator by H.C.F.




B. Considering the rational number =


14 = 2 × 7


-49 = 7 × 7 × -1


H.C.F. = 7


To convert into it’s standard form,


Divide the numerator and denominator by H.C.F.




C. Considering the rational number =


-15 = 3 × 5 × -1


35 = 5 × 7


H.C.F. = 5


To convert into it’s standard form,


Divide the numerator and denominator by H.C.F.




D. Considering the rational number =


299 = 13 × 23


161 = 7 × 23


H.C.F. = 23


To convert into standard form,


Divide the numerator and denominator by H.C.F.




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