To convert fractions to decimals using equivalent fractions, we want to change the denominator (bottom number) to 10, 100, or 1000. This makes it easy to write as a decimal.
Here is the step-by-step solution for each problem:
1. $\frac{15}{20}$
* Divide both top and bottom by 5 to get $\frac{3}{4}$.
* Multiply top and bottom by 25 to get a denominator of 100: $\frac{3 \times 25}{4 \times 25} = \frac{75}{100}$.
* $\frac{75}{100} = 0.75$
2. $\frac{12}{25}$
* Multiply top and bottom by 4 to get a denominator of 100: $\frac{12 \times 4}{25 \times 4} = \frac{48}{100}$.
* $\frac{48}{100} = 0.48$
3. $\frac{12}{25}$
* Same as above: $\frac{48}{100} = 0.48$
4. $\frac{1}{2}$
* Multiply top and bottom by 5 to get a denominator of 10: $\frac{1 \times 5}{2 \times 5} = \frac{5}{10}$.
* $\frac{5}{10} = 0.5$
5. $\frac{13}{25}$
* Multiply top and bottom by 4 to get a denominator of 100: $\frac{13 \times 4}{25 \times 4} = \frac{52}{100}$.
* $\frac{52}{100} = 0.52$
6. $\frac{3}{5}$
* Multiply top and bottom by 2 to get a denominator of 10: $\frac{3 \times 2}{5 \times 2} = \frac{6}{10}$.
* $\frac{6}{10} = 0.6$
7. $\frac{19}{50}$
* Multiply top and bottom by 2 to get a denominator of 100: $\frac{19 \times 2}{50 \times 2} = \frac{38}{100}$.
* $\frac{38}{100} = 0.38$
8. $\frac{17}{20}$
* Multiply top and bottom by 5 to get a denominator of 100: $\frac{17 \times 5}{20 \times 5} = \frac{85}{100}$.
* $\frac{85}{100} = 0.85$
9. $\frac{6}{20}$
* Simplify by dividing by 2: $\frac{3}{10}$.
* $\frac{3}{10} = 0.3$
10. $\frac{1}{4}$
* Multiply top and bottom by 25 to get a denominator of 100: $\frac{1 \times 25}{4 \times 25} = \frac{25}{100}$.
* $\frac{25}{100} = 0.25$
11. $\frac{24}{25}$
* Multiply top and bottom by 4 to get a denominator of 100: $\frac{24 \times 4}{25 \times 4} = \frac{96}{100}$.
* $\frac{96}{100} = 0.96$
12. $\frac{9}{25}$
* Multiply top and bottom by 4 to get a denominator of 100: $\frac{9 \times 4}{25 \times 4} = \frac{36}{100}$.
* $\frac{36}{100} = 0.36$
13. $\frac{2}{5}$
* Multiply top and bottom by 2 to get a denominator of 10: $\frac{2 \times 2}{5 \times 2} = \frac{4}{10}$.
* $\frac{4}{10} = 0.4$
14. $\frac{7}{20}$
* Multiply top and bottom by 5 to get a denominator of 100: $\frac{7 \times 5}{20 \times 5} = \frac{35}{100}$.
* $\frac{35}{100} = 0.35$
Final Answer:
$\frac{15}{20} = 0.75$
$\frac{12}{25} = 0.48$
$\frac{12}{25} = 0.48$
$\frac{1}{2} = 0.5$
$\frac{13}{25} = 0.52$
$\frac{3}{5} = 0.6$
$\frac{19}{50} = 0.38$
$\frac{17}{20} = 0.85$
$\frac{6}{20} = 0.3$
$\frac{1}{4} = 0.25$
$\frac{24}{25} = 0.96$
$\frac{9}{25} = 0.36$
$\frac{2}{5} = 0.4$
$\frac{7}{20} = 0.35$
Parent Tip: Review the logic above to help your child master the concept of change fraction to decimal worksheet.