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Applications of HCF & LCM in Real-World Problems

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Question

There are 2.54 centimeters in one inch. How many inches are there in 51.78 centimeters? Round your answer to the nearest thousandth.

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Solution

1 inch = 2.54 cm
1 cm = $\frac{1}{2.54} inch$
Therefore, 51.78 cm = $\frac{51.78}{2.54} inches$ = 20.386 cm

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