Question

What is 45% of 115? show your work

Answer 1

★ What is 45% of 115?

To find your answer, you need to multiply 45% by 115. To make it easier, you can change 45% to a decimal OR fraction and multiply by 115.

2 WAYS

Decimal

To change a percent to a decimal, all you need to do is remove the percent sign and move the decimal point 2 places to the left.

$45 \% \rightarrow 0.45$

Now that the percent is changed into a decimal, multiply by 115.

$0.45 \times 115 = 51.75$

☆ Your answer is 51.75

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Fraction

Percents are out of 100. You can make a percent into a fraction by making the percent the numerator(top number) and 100 as the denominator(bottom number).

$45 \% \rightarrow \frac{45}{100}$

Now that you have changed the percent to a fraction, you can multiply by 115.

$\frac{45}{100} \times 115 = [tex]\frac{5,175}{100} = 51.75$

☆ Your answer is 51.75

It doesn't matter which way you do it because you always end up with the same answer.

If you have any questions, feel free to ask in the comments!