Question

draw factor tree of 45 and 30

Answer 1

45 30

/. \. /. \

3. 15. 2. 15

/ \. /\

3. 5. 3. 5

45=3*3*5

30=2*3*5

Hcf=3*5

=15

Lcm=3²*5*2

=9*10

=90.

Hope it was helpful

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