Maths Olympiad Prep

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Algebra Difficulty 3.8 AMC 10/12 Find the answer South Africa

Determine the value of 13×13×121+13+13+12\frac{13 \times 13 \times 12}{1 + 13 + 13 + 12}

A number or a short expression. Spacing and $ signs are ignored.

Solution

The fraction is 13×13×1239=13×13×123×13=13×123=13×4=52\frac{13 \times 13 \times 12}{39} = \frac{13 \times 13 \times 12}{3 \times 13} = \frac{13 \times 12}{3} = 13 \times 4 = 52

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