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Mathematics · Grade 4

Add and Subtract Fractions

Learners add and subtract fractions with the same denominator as joining and separating parts of the same whole, decompose fractions into sums in more than one way, add and subtract mixed numbers (regrouping a whole when needed), and solve word problems with fraction bars and number lines.

  • 4 lessons
  • About 85 minutes
  • Fraction add and subtract check: 8 questions
  • Ways to answer: fill in the blanks, choose an answer, type a fraction, match pairs, place on a number line and shade a shape
See plans Included with Family, Teacher and School plans. Open in PlayOwl

What learners will discover

  • Add and subtract fractions with the same denominator by joining and separating parts of the same whole.
  • Decompose a fraction into a sum of fractions with the same denominator in more than one way.
  • Add and subtract mixed numbers with like denominators, regrouping a whole as a fraction when needed.
  • Solve word problems that add or subtract fractions and mixed numbers referring to the same whole.

Lessons

  1. Joining and separating parts 7 steps4 practiceabout 20 min
  2. Breaking fractions apart 6 steps4 practiceabout 20 min
  3. Mixed numbers 7 steps5 practiceabout 23 min
  4. Fraction stories 7 steps4 practiceabout 22 min
  5. Fraction add and subtract check 8 questions at the end

Keep exploring

Games to practice with

  • Number-Line HopHelp the frog hop to the right number — from counting to negative fractions.
  • Paint by AnswersSolve each space, dip your brush and watch a picture come to life.
  • Array OrchardPlant trees in rows, pack fruit into crates and split big fields to multiply.

More 4th grade math

Guide for grown-ups