Free Fraction Solver
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A fraction sum worked step by step
Below is one fully worked example plus a short primer so you can see exactly how our AI reasons through a problem.
Example Problem
DEMO- 1
Find the LCM of the denominators
Denominators are 3, 6 and 4. LCM(3, 6, 4) = 12.
- 2
Rewrite each fraction with denominator 12
Multiply top and bottom by the factor that makes the denominator 12.
- 3
Combine the numerators
- 4
Simplify by dividing top and bottom by GCD(15, 12) = 3
- 5
Convert improper fraction to a mixed number (optional)
5 ÷ 4 = 1 remainder 1, so 5/4 = 1 and 1/4.
Final Answer
How to add, subtract, multiply and divide fractions — step by step
A fraction represents part of a whole — numerator over denominator. Four operations cover almost every textbook problem in Class 5–9 and Grade 5–9. To add or subtract fractions with unlike denominators, find the lowest common multiple (LCM) of the denominators, rewrite each fraction with that denominator, then combine the numerators. To multiply fractions, multiply numerators and denominators straight across — no common denominator needed. To divide, multiply by the reciprocal of the divisor (flip the second fraction). After every operation, simplify by dividing numerator and denominator by their greatest common divisor (GCD). Mixed numbers (like 1 1/2) convert to improper fractions (3/2) before you compute, then convert back at the end. Algebraic fractions with variables use the same rules — find the LCM of polynomial denominators, then combine.
Fraction problems to practise (Class 5 to 9)
Tap any problem to solve it with full step-by-step working.
- Solve with AI →1.Addition (unlike)Class 5Easy
- Solve with AI →2.Subtraction (unlike)Class 6Easy
- Solve with AI →3.Mixed × mixedClass 6–7Medium
- Solve with AI →4.DivisionClass 7Medium
- Solve with AI →5.Algebraic fraction equationClass 8–9Hard
Frequently asked questions
How do I add fractions with different denominators?+
Find the LCM of the denominators, rewrite each fraction with that denominator, add or subtract the numerators, then simplify. Example: 2/3 + 1/4 has LCM = 12, giving 8/12 + 3/12 = 11/12.
How do I multiply and divide mixed numbers?+
Convert each mixed number to an improper fraction first (2 1/3 → 7/3). For multiplication, multiply numerators and denominators straight across. For division, multiply by the reciprocal of the divisor (flip the second fraction). Simplify at the end and convert back to a mixed number if needed.
What's the difference between an improper fraction and a mixed number?+
An improper fraction has a numerator ≥ denominator (5/4, 11/3). A mixed number writes the same value as a whole-number part plus a proper fraction (5/4 = 1 1/4). Both are correct answers; just match the format the textbook asks for.
Can SolveGini solve algebraic fractions with variables?+
Yes. Algebraic fractions like (x + 1)/3 − (x − 2)/4 use the same LCM-then-combine approach. SolveGini also handles equations with algebraic fractions by clearing denominators first, then solving the resulting polynomial equation.
Is the fraction solver free to use?+
SolveGini has a free plan. Guests can try 1 solve per day with no signup; a free account unlocks 5 daily solves plus quizzes, flashcards and a study planner — no credit card needed.
Does it work for Class 5 to Class 9 CBSE and ICSE chapters?+
Yes. Coverage spans CBSE and ICSE fraction chapters from Class 5 (basic arithmetic) through Class 9 (algebraic fractions and rational expressions), plus Common Core Grade 5–9 and GCSE Foundation fraction work.
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