Find the HCF of 4by 7and 16by21 and 8by35.
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Step-by-step explanation:
H.C.F of fractions=
L.C.Mofdenominator
H.C.Fofnumerator
=
L.C.M(10,25,35,40)
H.C.F(9,12,18,21)
Factors of 9=3×3
Factors of 12=3×2×2
Factors of 18=3×3×2
Factors of 21=3×7
Common factor=3
∴ H.C.F=3
Factors of 10=5×2
Factors of 25=5×5
Factors of 35=5×7
Factors of 40=5×2×2×2
L.C.M=1400
H.C.F=
1400
3
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