Lowest Term Calculator – Guide & Formulas
Simplify any fraction to its lowest terms instantly. Shows GCD calculation and step-by-step reduction process.
Simplify any fraction to its lowest terms instantly. Enter the numerator and denominator to see the GCD (Greatest Common Divisor) and the step-by-step reduction to simplest form.
Key Takeaway
Use the free Lowest Term Calculator to simplify any fraction to its lowest terms instantly. shows gcd calculation and step-by-step reduction process. Get instant results with step-by-step explanations.
How to Use the Lowest Term Calculator
- Enter the numerator (top number) of the fraction.
- Enter the denominator (bottom number) of the fraction.
- Click "Simplify" to see the lowest term result and GCD calculation.
- Review the step-by-step reduction process.
- Copy the result if needed.
The Formula
Variable Definitions
- GCD: Greatest Common Divisor — the largest number that divides both numerator and denominator
- a: The numerator of the fraction
- b: The denominator of the fraction
Simplifying 12/18 to Lowest Terms
Reduce the fraction 12/18 to its simplest form.
- Step 1: Find the GCD of 12 and 18.
- Step 2: Factors of 12: 1, 2, 3, 4, 6, 12. Factors of 18: 1, 2, 3, 6, 9, 18.
- Step 3: The greatest common factor is 6.
- Step 4: Divide numerator and denominator by 6: 12 ÷ 6 = 2, 18 ÷ 6 = 3.
- Step 5: The simplified fraction is 2/3.
Frequently Asked Questions
What does it mean to simplify a fraction?
Simplifying a fraction means reducing it so that the numerator and denominator have no common factors other than 1. The resulting fraction has the same value but smaller numbers.
What is the GCD and how do I find it?
The GCD (Greatest Common Divisor) is the largest number that divides both the numerator and denominator. Find it by listing factors of both numbers and picking the largest shared one, or use the Euclidean algorithm.
What is 8/12 in lowest terms?
8/12 = 2/3. The GCD of 8 and 12 is 4. Divide both by 4: 8 ÷ 4 = 2, 12 ÷ 4 = 3.
What is 15/25 in lowest terms?
15/25 = 3/5. The GCD of 15 and 25 is 5. Divide both by 5: 15 ÷ 5 = 3, 25 ÷ 5 = 5.
What is 24/36 in lowest terms?
24/36 = 2/3. The GCD of 24 and 36 is 12. Divide both by 12: 24 ÷ 12 = 2, 36 ÷ 12 = 3.
What is 18/24 in lowest terms?
18/24 = 3/4. The GCD of 18 and 24 is 6. Divide both by 6: 18 ÷ 6 = 3, 24 ÷ 6 = 4.
What is 21/28 in lowest terms?
21/28 = 3/4. The GCD of 21 and 28 is 7. Divide both by 7: 21 ÷ 7 = 3, 28 ÷ 7 = 4.
What is 10/15 in lowest terms?
10/15 = 2/3. The GCD of 10 and 15 is 5. Divide both by 5: 10 ÷ 5 = 2, 15 ÷ 5 = 3.
What is 14/21 in lowest terms?
14/21 = 2/3. The GCD of 14 and 21 is 7. Divide both by 7: 14 ÷ 7 = 2, 21 ÷ 7 = 3.
What is 20/30 in lowest terms?
20/30 = 2/3. The GCD of 20 and 30 is 10. Divide both by 10: 20 ÷ 10 = 2, 30 ÷ 10 = 3.
Can a fraction already be in lowest terms?
Yes. If the GCD of the numerator and denominator is 1, the fraction is already in lowest terms. For example, 3/4, 5/7, and 11/13 are already simplified.
What is 16/20 in lowest terms?
16/20 = 4/5. The GCD of 16 and 20 is 4. Divide both by 4: 16 ÷ 4 = 4, 20 ÷ 4 = 5.
What is 9/12 in lowest terms?
9/12 = 3/4. The GCD of 9 and 12 is 3. Divide both by 3: 9 ÷ 3 = 3, 12 ÷ 3 = 4.
What is 27/36 in lowest terms?
27/36 = 3/4. The GCD of 27 and 36 is 9. Divide both by 9: 27 ÷ 9 = 3, 36 ÷ 9 = 4.
What is 45/60 in lowest terms?
45/60 = 3/4. The GCD of 45 and 60 is 15. Divide both by 15: 45 ÷ 15 = 3, 60 ÷ 15 = 4.
What is 32/48 in lowest terms?
32/48 = 2/3. The GCD of 32 and 48 is 16. Divide both by 16: 32 ÷ 16 = 2, 48 ÷ 16 = 3.
How do I simplify a fraction with large numbers?
Use the Euclidean algorithm: repeatedly divide the larger number by the smaller and replace with the remainder until the remainder is 0. The last non-zero remainder is the GCD.
What is 35/49 in lowest terms?
35/49 = 5/7. The GCD of 35 and 49 is 7. Divide both by 7: 35 ÷ 7 = 5, 49 ÷ 7 = 7.
What is 42/56 in lowest terms?
42/56 = 3/4. The GCD of 42 and 56 is 14. Divide both by 14: 42 ÷ 14 = 3, 56 ÷ 14 = 4.
What is 50/75 in lowest terms?
50/75 = 2/3. The GCD of 50 and 75 is 25. Divide both by 25: 50 ÷ 25 = 2, 75 ÷ 25 = 3.