1997 PMWC Problems/Problem I1

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Problem

Evaluate $29 \frac{27}{28} \times 27\frac{14}{15}$ .

Solution

$\frac{29 \cdot 28 + 27}{28} \cdot \frac{27 \cdot 15 + 14}{15} = \frac{839 \cdot 419}{420} = \frac{839(420 - 1)}{420} = 839 - \frac{839}{420} = 837 \frac{1}{420}$

1997 PMWC (Problems)
Preceded by First question	Followed by Problem I2
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1997 PMWC Problems/Problem I1

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Problem

Solution

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