Find out the common multiples of 5 and 6. Write the smallest multiple?

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Answer 1 · 2018-04-26T18:02:52

see below

multiples of a number are the numbers seen in their times tables

so the multiples of

#5:" "{5,10,15,20,25,color(red)(30),35,40,45,50,55,color(red)(60).....}#

multiples of

#6:" "{6,12,18,24,color(red)(30),36,42,48,54,color(red)(60),....}#

the common multiples are those which appear in BOTH lists

in this case

#{30,60,...}#

(can you work out the next one?)

so the smallest, ie lowest common multiple

#lcm(5,6)=30#