Question

Patty measured the elementary school and made a scale drawing. The scale she used was 7 centimeters = 1 meter

Answer 1

Write the scale of the drawing as a fraction. Put the shorter length in the numerator.

$\frac{7 \: cm}{1 \: cm}$

First convert the denominator to the same units as the numerator. Write an equivalent fraction with centimeters in the denominator. Since 1 meter is equal to 100 centimeters, multiply the denominator by 100 to get centimeters in the denominator.

$\frac{7 \: cm}{100 \: cm} = \: \frac{7}{100}$

Write the scale factor as a ratio, using a colon

7/100   →  7:100

The scale factor is 7:100.

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