Write 120+45 as a product of their GCF and another sum

1 answer:

8 0

$120|2\\.\ 60|2\\.\ 30|2\\.\ 15|3\\.\ \ 5|5\\.\ \ 1|\\\\120=2\cdot2\cdot2\cdot\boxed{3}\cdot\boxed{5}\\\\45|3\\15|3\\.\ 5|5\\.\ 1|\\\\45=\boxed{3}\cdot3\cdot\boxed{5}\\\\GCF(120,\ 45)=\boxed{3}\cdot\boxed{5}=15\\\\120:15=8\\45:15=3\\\\120+45=15\cdot8+15\cdot3=15(8+3)$

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