Video: Calculating the Percentage of a Decimal Number from a Whole Number

What percent of 30 is 1.1? Round the result to the nearest tenth.

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Video Transcript

What percent of 30 is 1.1? Round the result to the nearest tenth.

1.1 out of 30 can be written as a fraction, 1.1 over or divided by 30. The word percent means “out of 100.” Therefore, to turn any fraction into a percent or percentage, we need to multiply by 100. Typing this into the calculator gives us an answer of 3.666 and so on or 3.6 recurring.

We were asked to give our answer to the nearest tenth. This means we need to round to one decimal place. Our deciding number becomes the six in the hundredths column. As this is greater than five, we need to round up. Rounding 3.6 recurring up gives us an answer of 3.7.

We can therefore say that 1.1 is 3.7 percent of 30.

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