ISEE Middle Level Math : How to find the decimal equivalent of a fraction

Study concepts, example questions & explanations for ISEE Middle Level Math

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Example Questions

Example Question #111 : How To Find The Decimal Equivalent Of A Fraction

What is the equivalent of \(\displaystyle \frac{6}{20}\)?

Possible Answers:

\(\displaystyle .20\)

\(\displaystyle .06\)

\(\displaystyle .30\)

\(\displaystyle .02\)

none of the other answers

Correct answer:

\(\displaystyle .30\)

Explanation:

Divide:

\(\displaystyle 6\div 20=.30\)

Answer: \(\displaystyle .30\)

Example Question #1141 : Isee Middle Level (Grades 7 8) Mathematics Achievement

What is the equivalent of \(\displaystyle \frac{64}{80}\)?

Possible Answers:

\(\displaystyle 648\)

\(\displaystyle .80\)

\(\displaystyle 10\)

\(\displaystyle 80\)

\(\displaystyle .75\)

Correct answer:

\(\displaystyle .80\)

Explanation:

Divide: \(\displaystyle 64\div 80=.80\)

Answer: \(\displaystyle .80\)

Example Question #113 : Fractions

Find the decimal equivalent of \(\displaystyle \frac{15}{20}\).

Possible Answers:

\(\displaystyle 0.75\)

\(\displaystyle 0.15\)

\(\displaystyle 0.60\)

\(\displaystyle 0.25\)

\(\displaystyle 0.50\)

Correct answer:

\(\displaystyle 0.75\)

Explanation:

Divide:

\(\displaystyle 15\div 20=0.75\)

Another way to solve is to reduce the fraction by removing a common factor.

\(\displaystyle \frac{15}{20}=\frac{15\div5}{20\div5}=\frac{3}{4}\)

Three-fourths is equal to \(\displaystyle 0.75\).

Answer: \(\displaystyle 0.75\)

Example Question #1142 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the decimal equivalent of \(\displaystyle \frac{15}{40}\).

Possible Answers:

None of these

\(\displaystyle 0.35\)

\(\displaystyle 0.375\)

\(\displaystyle 0.325\)

\(\displaystyle 0.40\)

Correct answer:

\(\displaystyle 0.375\)

Explanation:

Divide:

\(\displaystyle 15\div 40=0.375\)

Answer: \(\displaystyle 0.375\)

Example Question #114 : Fractions

Find the decimal equivalent of \(\displaystyle \frac{21}{70}\).

Possible Answers:

\(\displaystyle 0.49\)

\(\displaystyle 0.30\)

\(\displaystyle 0.21\)

\(\displaystyle 0.55\)

\(\displaystyle 0.70\)

Correct answer:

\(\displaystyle 0.30\)

Explanation:

Divide:

\(\displaystyle 21\div 70=0.30\)

Another way to solve is to reduce the fraction by removing a common factor.

\(\displaystyle \frac{21}{70}=\frac{21\div7}{10\div7}=\frac{3}{10}\)

Three over ten, or three-tenths, is equal to \(\displaystyle 0.30\).

Answer: \(\displaystyle 0.30\)

Example Question #115 : Fractions

Find the decimal equivalent of \(\displaystyle \frac{12}{80}\).

Possible Answers:

None of these

\(\displaystyle 0.04\)

\(\displaystyle 0.12\)

\(\displaystyle 0.80\)

\(\displaystyle 0.15\)

Correct answer:

\(\displaystyle 0.15\)

Explanation:

Divide:

\(\displaystyle 12\div 80=0.15\)

Another way to solve is to reduce the fraction by removing a common factor.

\(\displaystyle \frac{12}{80}=\frac{12\div4}{80\div4}=\frac{3}{20}\)

Multiply to get a denominator of one hundred.

\(\displaystyle \frac{3}{20}=\frac{3\times5}{20\times5}=\frac{15}{100}\)

Fifteen-hundredths is equal to \(\displaystyle 0.15\).

Answer: \(\displaystyle 0.15\)

Example Question #1151 : Isee Middle Level (Grades 7 8) Mathematics Achievement

What is the equivalent of \(\displaystyle \frac{9}{90}\)?

Possible Answers:

\(\displaystyle 9\)

\(\displaystyle .09\)

\(\displaystyle .10\)

\(\displaystyle .90\)

\(\displaystyle .20\)

Correct answer:

\(\displaystyle .10\)

Explanation:

To solve, divide: \(\displaystyle 9\div 90=.10\)

Answer: \(\displaystyle .10\)

Example Question #1152 : Isee Middle Level (Grades 7 8) Mathematics Achievement

What is the equivalent of \(\displaystyle \frac{40}{50}\)?

Possible Answers:

\(\displaystyle .45\)

\(\displaystyle .50\)

\(\displaystyle .04\)

\(\displaystyle .80\)

\(\displaystyle .25\)

Correct answer:

\(\displaystyle .80\)

Explanation:

To solve, divide: \(\displaystyle 40\div 50=.80\)

Answer: \(\displaystyle .80\)

Example Question #1153 : Isee Middle Level (Grades 7 8) Mathematics Achievement

What is the equivalent of \(\displaystyle \frac{36}{60}\)?

Possible Answers:

\(\displaystyle .36\)

\(\displaystyle 3.6\)

\(\displaystyle .06\)

\(\displaystyle .60\)

\(\displaystyle 36\)

Correct answer:

\(\displaystyle .60\)

Explanation:

To solve, divide: \(\displaystyle 36\div 60=.60\)

Answer: \(\displaystyle .60\)

 

Example Question #1154 : Isee Middle Level (Grades 7 8) Mathematics Achievement

What is the equivalent of \(\displaystyle \frac{16}{40}\)?

Possible Answers:

\(\displaystyle .16\)

\(\displaystyle .40\)

\(\displaystyle .60\)

\(\displaystyle .50\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle .40\)

Explanation:

To solve, divide: \(\displaystyle 16\div 40=.40\)

Answer: \(\displaystyle .40\)

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