WARM-UP. Convert the fractions to decimals. 1). 4). 3). 2). 1. 4. Convert the decimals to percents. .25. 1. 2. Convert the fractions to percents. 6). ...
18.3 Fractions to Decimals to Percents Common Core Standards 7.RP.3. Use proportional relationships to solve multistep ratio and percent problems. Examples: simple interest, tax, markups and markdowns, gratuities and commissions, fees, percent increase and decrease, percent error.
WARM-UP Convert the fractions to decimals.
1 1) 2
1 2) 4
Convert the decimals to percents. 3)
.5
4) .25
Convert the fractions to percents. 5) 1
6) 1
2
4
Fractions to Decimals to Percents If fractions can be converted to decimals and decimals converted to a percents, can you use that to convert fractions to percents?
1 = .25 = 25% 4
NOTES We can convert a fraction directly to a percent (as we've learned) or we can convert it first to a decimal and then move the decimal point two times to the right. Examples Convert the fraction to a decimal and then to a percent.
2 5
1 8
3 4
NOTES Division is the best way to turn repeating decimals into percents. Examples Convert the fraction to a decimal and round the answer to the nearest whole percent.
1 3
2 9
NOTES The numerator always goes inside. Examples Convert the fraction to a decimal and then to a percent.
9 5
16 9
NOTES Simplifying the fraction first can make dividing easier. Examples Convert the fraction to a decimal and then to a percent.
9 24
20 24
PRACTICE Convert the fraction to a decimal and then a percent.
7 8
7 4
Convert the fraction to a decimal and then round to the nearest whole percent.
2 11
20 30
FINAL QUESTION Sally got 7 out of 9 correct on her English quiz. Approximately what percent did she get correct?