How To Multiply A Fraction By A Number
Make the whole number a fraction by putting it over 1.
How to multiply a fraction by a number. How to do fraction and whole number multiplication duration. This process is similar to reducing a fraction. Before you multiply see whether you can cancel out common factors that appear in both the numerator and denominator. More multiplying fractions step by step examples.
For example with 3 8 x 32 1 multiply 3 x 32 to get 96. What about multiplying fractions and whole numbers. To multiply fractions start by multiplying the numerators together which are the numbers at the top of the fractions. Place this new number over the old denominator.
To do so multiply the whole number by the fractions denominator then add the numerator. Once you have turned your whole number into a fraction follow the rules for multiplying fractions. Working with fractions can be intimidating but if you arm yourself with the right tools you ll find that working with fractions is no harder than working with basic numbers. The numerator of your answer is 96.
Common core state standards 4 nf 4 4 nf 4a 4 nf 4b 4 nf 4c. Then multiply the denominators together which are the numbers at the bottom of the fractions. This complete guide to multiplying fractions by whole numbers includes several examples an animated video mini lesson and a free worksheet and answer key. The top numbers are the numerators.
Today we will multiply a fraction with a whole number. Multiply the top numbers of the fraction straight across. Welcome to this free lesson guide where you will learn and easy two step process for multiplying fractions by whole numbers and multiplying whole numbers by fractions. Once you have two improper fractions multiply the numerators together to get the numerator for your answer and then do.
When you multiply two proper fractions the answer is always a proper fraction so you won t have to change it to a mixed number but you may have to reduce it. For example if you re trying to solve 2 3 3 4 you d multiply 2 by 3 and get 6. To multiply fractions with whole numbers write each fraction as an improper fraction. And don t forget to simplify before it s time to say goodbye fractions and whole numbers.