How to Divide a Whole Number With a Fraction
Convert the whole number to a fraction., Find the reciprocal of the divisor., Multiply the two fractions., Simplify, if necessary.
Step-by-Step Guide
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Step 1: Convert the whole number to a fraction.
To do this, make the whole number the numerator of a fraction.
Make the denominator
1.For example, if you are calculating 7÷34{\displaystyle 7\div {\frac {3}{4}}}, you would first change 7{\displaystyle 7} to 71{\displaystyle {\frac {7}{1}}}. -
Step 2: Find the reciprocal of the divisor.
The reciprocal of a number is the inverse of the number.
To find the reciprocal of a fraction, reverse the numerator and denominator.For example, the inverse of 34{\displaystyle {\frac {3}{4}}} is 43{\displaystyle {\frac {4}{3}}}. , To multiply fractions, first multiply the numerators together.
Then, multiply the denominators together.
The product of the two fractions equals the quotient of your original division problem.For example, 71×43=283{\displaystyle {\frac {7}{1}}\times {\frac {4}{3}}={\frac {28}{3}}} , If you have an improper fraction (a fraction with a larger numerator than denominator), your teacher may require you to change it to a mixed number.
Usually your teacher will require you to reduce proper fractions to lowest terms.
For example, 283{\displaystyle {\frac {28}{3}}} simplified to a mixed number is 713{\displaystyle 7{\frac {1}{3}}}. -
Step 3: Multiply the two fractions.
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Step 4: Simplify
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Step 5: if necessary.
Detailed Guide
To do this, make the whole number the numerator of a fraction.
Make the denominator
1.For example, if you are calculating 7÷34{\displaystyle 7\div {\frac {3}{4}}}, you would first change 7{\displaystyle 7} to 71{\displaystyle {\frac {7}{1}}}.
The reciprocal of a number is the inverse of the number.
To find the reciprocal of a fraction, reverse the numerator and denominator.For example, the inverse of 34{\displaystyle {\frac {3}{4}}} is 43{\displaystyle {\frac {4}{3}}}. , To multiply fractions, first multiply the numerators together.
Then, multiply the denominators together.
The product of the two fractions equals the quotient of your original division problem.For example, 71×43=283{\displaystyle {\frac {7}{1}}\times {\frac {4}{3}}={\frac {28}{3}}} , If you have an improper fraction (a fraction with a larger numerator than denominator), your teacher may require you to change it to a mixed number.
Usually your teacher will require you to reduce proper fractions to lowest terms.
For example, 283{\displaystyle {\frac {28}{3}}} simplified to a mixed number is 713{\displaystyle 7{\frac {1}{3}}}.
About the Author
Douglas Hayes
Experienced content creator specializing in crafts guides and tutorials.
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