If a tree grows 1/4 a foot in 1/12 of a year. How much will it grow in 3 years?

3 feet

Explanation:

The tree grows 1/4 foot each month (1/12 of a year)

So the tree grows (1/4)(12) feet in a year. That is 3 feet.

In math:

(1/4) / (1/12)      

(1/4) · 12         to divide by a fraction, invert and multiply

3

b.

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