Grade 5 · Fractions & ratios

Adding and subtracting fractions practice

Adding and subtracting fractions is a grade 5 math skill aligned to Common Core standard 5.NF.A.1: add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions with like denominators. Below are 8 practice questions with answers and step-by-step explanations, drawn from the 210 adding and subtracting fractions problems our math games drill.

CCSS 5.NF.A.1210 questions in the bank
Sample questions

Try 8 for free

Question 1easy

What is 36+23\dfrac{3}{6} + \dfrac{2}{3}?

LCD is 6: 36+46=76\dfrac{3}{6} + \dfrac{4}{6} = \dfrac{7}{6}.

Question 2easy

What is 12−15\dfrac{1}{2} - \dfrac{1}{5}?

LCD is 10: 510−210=310\dfrac{5}{10} - \dfrac{2}{10} = \dfrac{3}{10}.

Question 3easy

What is 12+34\dfrac{1}{2} + \dfrac{3}{4}?

LCD is 4: 24+34=54\dfrac{2}{4} + \dfrac{3}{4} = \dfrac{5}{4}.

Question 4easy

What is 68−13\dfrac{6}{8} - \dfrac{1}{3}?

LCD is 24: 1824−824=512\dfrac{18}{24} - \dfrac{8}{24} = \dfrac{5}{12}.

Question 5easy

What is 26+16\dfrac{2}{6} + \dfrac{1}{6}?

26+16=12\dfrac{2}{6} + \dfrac{1}{6} = \dfrac{1}{2}.

Question 6easy

What is 67−27\dfrac{6}{7} - \dfrac{2}{7}?

Same denominator: 6−27\dfrac{6 - 2}{7}. Result: 47\dfrac{4}{7}.

Question 7easy

What is 68+48\dfrac{6}{8} + \dfrac{4}{8}?

68+48=54\dfrac{6}{8} + \dfrac{4}{8} = \dfrac{5}{4}.

Question 8easy

What is 58−38\dfrac{5}{8} - \dfrac{3}{8}?

Same denominator: 5−38\dfrac{5 - 3}{8}. Result: 14\dfrac{1}{4}.

Play it

Math games for Grade 5

Questions like these are served inside our head-to-head math games.

Balloon Pop Math gameBalloon Pop MathPop balloons. Solve math. Win!Beam Team gameBeam TeamFly your saucer over the night farm and beam up a critter for every right answer — first to 12 wins.Blaster Gate gameBlaster GateBlast through the wall. First to clear wins.Blitz Tanks gameBlitz TanksSolve math to load shells. Out-think the battalion. Last math standing wins.
Tests that cover adding and subtracting fractions:
SBACACT Aspirei-ReadySC READYNC EOG/EOC
More Grade 5 skills:
Coordinate plane basicsLong divisionData on line plotsLong multiplicationPowers of tenVolume of rectangular prismsAll Grade 5 practice →

Drill it inside a game.

The free placement test finds your level, then every match serves adding and subtracting fractions questions at exactly the right difficulty.