How To Devide Fractions
Dividing by 5 2 is the same as multiplying by 2 5 so instead of dividing by a fraction it is easier to turn that fraction upside down then do a multiply.
How to devide fractions. Percentage word problem 3 duration. To divide fractions by fractions start by replacing the division sign with a multiplication sign. In fact after you change mixed numbers to improper fractions dividing fractions is just like multiplying fractions except that you flip the numerator and the denominator of the second fraction. Take a look at the example below.
The first step to dividing fractions is to find the reciprocal reverse the numerator and denominator of the second fraction. Mixed numbers adding subtracting multiplying dividing whole numbers decimals improper fractions duration. Next multiply the two numerators. To divide one fraction by another fraction change the problem to multiplication.
Mathematicians didn t want to muck up fraction division by making you do something as complicated as actually dividing so they devised a way to use multiplication instead. The organic chemistry tutor 683 960 views 58 32. To divide a fraction by a whole number all you have to do is to convert the whole number into a fraction find the reciprocal of that fraction and multiply the result by the first fraction. Carson dellosa education 80 804 views.
One of the most valuable things to teach your students when dividing fractions is what the answer means. How dividing fractions works. You bought 6 1 2 pounds of sirloin steak and you want to cut it into pieces that. Introduction to fractions dividing fractions by whole numbers multiplying fractions simplifying fractions equivalent fractions adding fractions subtracting fractions.
Finally simplify the fractions if needed. Dividing fractions by whole numbers using models duration. 3. Dividing fractions is as easy as pie.
Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. Dividing fractions by a whole number isn t as hard as it looks. Then flip the second fraction over so the bottom number of the second fraction is now on the top. Then multiply the two denominators.
This tutorial explains how to divide fractions and demonstrates the process with several examples. Teaching students how to divide fractions is part of the common core state standards for mathematical practice. Change the second fraction to its reciprocal.