Question

what is the hcf of 64 and 80 and the lcm of 30 and 40
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Answer 1

Answer:

HCF OF 64 AND 80

80=64*1+16

64=16*4+0

HCF=16

LCM OF 30 AND 40

30=2x5x3

40=2x2x2x5

LCM =2x5x3x2x2

=120

Answer 2

Answer:

HCF of 64 and 80 is 16

LCM of 30 and 40 is 10

Step-by-step explanation:

HCF of 64 and 80:

64=2×2×2×2×2×2

80=2×2×2×2×5

HCF=2×2×2×2=16

LCM of 30 and 40:

30=3×2×5

40=2×2×2×5

LCM of 30 and 40 = 2×2×2×3×5=120

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