Reference
Accessible text: a over b plus c over d equals a times d plus b times c, all over b times d. Written solutions use the least common denominator. Worked example: 1/2 + 1/3 = 5/6. Edge case: adding a zero numerator leaves the other fraction. Adding fractions calculator
Keep the sign. Worked example: 3/4 − 1/6 = 7/12. Edge case: 1/3 − 2/3 = −1/3. Subtracting fractions calculator
Worked example: 2/3 × 3/5 = 2/5. Edge case: a zero numerator makes the product zero. Multiplying fractions calculator
Worked example: 3/4 ÷ 2/5 = 15/8. Edge case: a zero divisor is undefined. Dividing fractions calculator
Worked example: 24/36 = 2/3. Edge case: 7/13 is already simplest. Simplify fractions
Worked example: 2 1/3 = 7/3. Edge case: −2 1/3 = −7/3. Mixed number calculator
Worked example: 0.125 = 1/8. Edge case: repeating 1/3 is not a finite decimal. Decimal converter
Worked example: 3/4 > 2/3 because 9 > 8. Edge case: 1/2 equals 2/4. Compare fractions