find the HCF and LCM of 120,90 and 50,60 and 37,49 by using prime factorisation method.
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Answered by
32
120, 90
120 = 2×2×2×3×5
= 2³×3×5
90 = 2×3×3×5
= 2×3²×5
HCF(120,90) = 2×3×5 = 30
LCM(120,90) = 2³×3²×5 = 360
50, 60
50 = 2×5×5
= 2×5²
60 = 2×2×3×5
= 2²×3×5
HCF(50, 60) = 2×5 = 10
LCM(50, 60) = 2²×5⁵×3 = 300
37, 49
37 = 37×1
49 = 7×7
HCF(37, 49) = 1
LCM(37 , 49) = 37×7² = 1086
I hope this helps you
Answered by
9
Answer:
120, 90
120 = 2×2×2×3×5
= 2³×3×5
90 = 2×3×3×5
= 2×3²×5
HCF(120,90) = 2×3×5 = 30
LCM(120,90) = 2³×3²×5 = 360
50, 60
50 = 2×5×5
= 2×5²
60 = 2×2×3×5
= 2²×3×5
HCF(50, 60) = 2×5 = 10
LCM(50, 60) = 2²×5⁵×3 = 300
37, 49
37 = 37×1
49 = 7×7
HCF(37, 49) = 1
LCM(37 , 49) = 37×7² = 1086
- I hope this helps you
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