Question

L.C.M and H.C.F of 28,15&42(ans is not equal to 1680)

Answer 1

HERE IS YOUR ANSWER MATE.....;

LCM = 180

HCF = 1

HOPE ITS HELP YOU

Answer 2

Answer:

lcm

2 14 15 21

2 7 15 21

3 7 5 7

5 7 1 7

7 1 1 1

lcm =2×2×3×5×7= 420

hcf

since there is no common in 15 and 42 hcf is 1