IXL | Add and subtract fractions with like denominators: word problems

As part of a lesson on earthquakes, a science class is researching the movement of a nearby fault line. The fault line moved 1/4 of an inch during the past year and 2/4 of an inch the year before. How far did the fault line move in all?

Simplify your answer and write it as a fraction or as a whole or mixed number.

inches

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Learn with an example

question

Last week Mitchell and his roommates ate 1/6 of a carton of yogurt, and this week they ate 4/6 of a carton. How much more yogurt did they eat this week compared to last week?

Simplify your answer and write it as a fraction or as a whole or mixed number.

cartons

solution

Find how many more cartons they ate this week by subtracting 1/6 from 4/6.

Subtract the numerators:

–

Write the answer in simplest form. Divide both the numerator and the denominator by 3.

Mitchell and his roommates ate 1/2 of a carton more yogurt this week.

Looking for more? Try these:

Lesson: Adding fractions with like denominators

Lesson: Subtracting fractions with like denominators

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Work it out

Not feeling ready yet? These can help:

Add fractions with like denominators

Subtract fractions with like denominators

Lesson: Adding fractions with like denominators

Lesson: Subtracting fractions with like denominators

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