Question

The ratio of LCM and HCF of 10, 15 and 21 is: ​

Answer 1

Answer:

we take all the factors present in three numbers and the highest power of the common factors respectively. Therefore, the required H.C.F. and L.C.M. of 12, 21 and 15 are 3, 420 respectively.

Answer 2

Answer:

Ratio of L.C.M and H.C.F is 210:7

atio of L.C.M and H.C.F is 210:7=30:1

Step-by-step explanation:

L.C.M of 10,15,21 is

$10 - - - 2 \times 5 \\15 - - - 3 \times 5 \\ 21 - - - 3 \times 7$

$l.c.m \: of 10 \: 15 \: 21 \: is \: 210$

HCF is7

so ratio of L.C.M and H.C.F is 210:7

=30:1

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