Inverse Property of Multiplication | Multiplicative Inverse (Reciprocal) | Math with Mr. J
From Math with Mr. J
11 min5th6thMath
Summary
What a reciprocal is -- the number you multiply by to get 1 -- and how to find the reciprocal of a fraction or whole number. Mr. J links it to dividing fractions.
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Teaching resources
Discussion questions
Two numbers are reciprocals when their product is 1.
- What is the reciprocal of 3/4?
- How do you find the reciprocal of a whole number?
- Why are reciprocals useful when dividing fractions?
Quick work-a-long
Words to know: reciprocal, product, fraction
- Find the reciprocal of 5.
- Find the reciprocal of 2/3 and check that the product is 1.