Fraction RulesAdd, subtract, multiply and divide fractions — one worked…5th GradeADD & SUBTRACT — denominators must matchSame bottom: 3/8 + 2/8 = 5/8Add the tops only. The bottom names the pieces — it does not change.Different: 1/2 + 1/3 → 3/6 + 2/6 = 5/6Find a common denominator first — the smallest number both bottoms divide into.MULTIPLY — straight across2/3 × 4/5 = 8/15tops × tops, bottoms × bottoms"Of" means multiply: half of 1/3 is 1/2 × 1/3 = 1/6.Multiplying by a fraction less than 1 makes the answer smaller.DIVIDE — keep, change, flip3/4 ÷ 2/5 = 3/4 × 5/2 = 15/8 = 1 ⅞Keep the first fraction. Change ÷ to ×. Flip the second one over.Dividing by a fraction less than 1 makes the answer bigger — you are asking"how many of these fit inside that?"MIXED NUMBERS2 ⅓ → (2 × 3) + 1 = 7 → 7/3Convert to improper fractions before multiplying or dividing. Convert back at the end.11/4 → 4 goes into 11 twice with 3 left → 2 ¾SIMPLIFY LASTDivide top and bottom by the same number until nothing else goes into both.Fraction Ruleswww.littleactivity.com

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Math · 5th Grade

Fraction Rules

Add, subtract, multiply and divide fractions — one worked example each.

How to use it

The single-sheet summary of the six fraction posters in this set.

Free · print-ready PDF · US Letter and A4

Grade
5th Grade
Ages
10–11
Subject
Math
Pages
1

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49 more posters, all free to print — 11 of them here.

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