Rounding fractions

Rounding fractions using a number line is the goal of this math lesson.

Example #1

The length of a desk is about 60 5/8 inches. What is the length of the desk to the nearest inch?

Solution

Look at the fraction part of 60 5/8 and decide if it is closer to 1 or closer to 0. 

Rounding fractions

The fraction part of 60 5/8 is 5/8. Is 5/8 closer to 0 or 1? Looking at the number line above, we can see that 5/8 is closer to 1. 

Therefore, to the nearest inch, the length of the desk is 61 inches.

Example #2

The depth of a three-seat sofa is about 32 1/8 inches. What is the depth of the three-seat sofa to the nearest 1/2 inch?

Solution

Look at the fraction part of 32 1/8 and decide if it is closer to 1/2 or closer to 0. 

Rounding fractions

The fraction part of 32 1/8 is 1/8. Is 1/8 closer to 0 or 1/2? Looking at the number line above, we can see that 1/8 is closer to 0. 

Therefore, to the nearest inch, the depth of the three-seat sofa is 32 inches.

Recent Articles

  1. High School Math Teacher

    Jan 20, 20 03:17 PM

    Top-notch information for those who want to become a high school math teacher. All important stuff that you need to know before making a move can be found right here on this website.

    Read More

New math lessons

Your email is safe with us. We will only use it to inform you about new math lessons.

                                 Follow me on Pinterest

Real Life Math Skills

Learn about investing money, budgeting your money, paying taxes, mortgage loans, and even the math involved in playing baseball.