Adding & Subtracting Fractions
Master fraction addition and subtraction — starting with like denominators, then tackling unlike denominators with common denominator method.
Same Denominators (Easy)
When denominators match — just add or subtract the numerators. Keep the denominator the same.
2 + 1 = 3. Keep the 5 on the bottom.
3 − 1 = 2/4. Simplify: 2/4 = ½
Different Denominators (Harder)
When denominators differ, you must find a common denominator first — the lowest common multiple (LCM) of both denominators.
Step-by-step: ½ + ⅓
- LCM of 2 and 3 = 6
- Convert: ½ = 3/6 and ⅓ = 2/6
- Add: 3/6 + 2/6 = 5/6
Fractions Drill
Curriculum Standards & Learning Objectives
This worksheet topic strictly aligns with global mathematics curricula. Review the detailed learning outcomes and standard identifiers for Adding and Subtracting Fractions.
US Common Core
4.NF.B.3
Understand addition and subtraction of fractions
CBSE (India)
Grade 4-5
Adding and subtracting fractions
UK National Curriculum
Year 5
Add and subtract fractions
IGCSE
Foundation
Fraction operations
Singapore Math
Primary 4-5
Fraction operations
Australian Curriculum
ACMNA102
Add and subtract fractions
IB PYP
Year 4-5
Fraction operations
Canadian Curriculum
Grade 5
Fraction operations
New Zealand
Level 3-4
Fraction operations
UAE
Grade 4-5
Fraction operations
Saudi Arabia
Grade 4-5
Fraction operations
ICSE (India)
Class 4-5
Fraction operations
State Boards (India)
Class 4-5
Fraction operations
NCERT (India)
Class 4-5
Adding and subtracting fractions
All other curricula (21-50)
Grade 4-6 equivalent
Fraction operations