Question

Practising and Applying
1. Find the lowest common multiple of
each group. Show the factors you use
a) 5, 20, and 28​

Answer 1

One hundred seventy five (175)  is the answer.

Answer 2

:

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-- :

Factors of 20=1,2,4,5,10,20

Factors of 28=1,2,4,7,14,28

Common factors =1,2,4.