A few days ago
Last Maths Problem – PLEASE HELP THANKS?
The highest common factor of 3 numbers is 15. The least common multiple of the same three numbers is 90. What are the three numbers?
Top 1 Answers
A few days ago
Favorite Answer
HCF = 15
LCM = 90
since the HCF is in the LCM (of course!),
divide 90 by 15 = 90/15 = 6
6= 2 x 3
since 15 is the highest factor, every number needs to be bigger or equal to 15.
2 x 15 = 30
3 x 15 = 45
this is the two compulsary numbers, the next one can be 15.
ans: 30 , 45 , 15
~the end~
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