body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Envision Math 2.0: Grade 6, Volume 1

EM

Envision Math 2.0: Grade 6, Volume 1 View details

4. Understand Division With Fractions

Continue to next subchapter

Exercise 27 Page 35

The product of a number and its reciprocal is 1.

10/3

Practice makes perfect

The product of any nonzero real number and its reciprocal is 1. x*1/x=1The reciprocal of a fraction is the inverse of that fraction. x/y*y/x=1 This means that the reciprocal of 310 is 103. Let's check that this is true by calculating the product.

3/10* 10/3? =1

Multiply fractions

3* 10/10* 3? =1

Multiply

30/30? =1

a/a=1

1=1 ✓

The product of these two fractions is equal to 1 so we can be sure that 103 is a reciprocal of 310.

Subchapter links

Do You Understand? p.34

Do You Know How? p.34

Assessment Practice p.36