Math Practice
Why Us?
Parents
Schools Edition
District Edition
Plans & Pricing
Math Practice
Why Us?
Parents
Schools
School Edition
District Edition
Plans & Pricing
Login
PARENTS, START FREE TRIAL
Grade-5
Subtracting Fractions With Unlike Denominators - Word Problems
Practice Preview
Jordan drew a line that was
5
10
inches long. If he drew a second line that was
2
7
inches long, what is the difference between the lengths of the two lines?
(Solve and reduce the fraction.)
Explanation
Remember, we cannot subtract fractions until the denominators are same. So, we have to find the least common denominator.
Least Common Denominator (LCD) of 10 and 7 is 70.
Now, we have to make sure both fractions have the same new denominator 70.
You can write fraction
5
10
as
5x7
10x7
=
35
70
You can write fraction
2
7
as
2x10
7x10
=
20
70
Now, both fractions have same denominator and we are ready to subtract
35
70
-
20
70
=
35-20
70
=
15
70
That can be simplified to
=
3
14
Progress Summary
Questions Answered
0
Skill Score out of 100
Time Taken:
Switch User
×
Modal title
×
Log In
×
Become a member and enjoy great benefits. Only $9.95 per month. Sign up for a FREE 7 day trial now.
More Information
Unlimited questions to practice in 900+ PK-5 math skills.
Placement test and Continuous Assessments.
Individualized learning path. Personal recommendations.
Immediate feedback and explanations.
Track progress with real-time reports. Actionable results.
Aligned to Standards.
Weekly email on your child's progress.
Engaging awards, certificates and points.
Please enter your user name
Please enter your password
Log In
Remember
Forgot Password?
Your account is inactive. Please contact support.
Purchase Now
Feedback
×
We value your feedback! Please provide us with any questions or comments in the boxes below!
Name
Email
What is the problem/issue/suggestion you have?
What can we do to make it better?
Submit