Answers

Subtract 9/10 from 10/25

10/25 - 9/10 is -1/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 10 is 50
   
   Next, find the equivalent fraction of both fractional numbers with denominator 50
2. For the 1st fraction, since 25 × 2 = 50,
   10/25 = 10 × 2/25 × 2 = 20/50
3. Likewise, for the 2nd fraction, since 10 × 5 = 50,
   9/10 = 9 × 5/10 × 5 = 45/50
4. Subtract the two like fractions:
   20/50 - 45/50 = 20 - 45/50 = -25/50
5. After reducing the fraction, the answer is -1/2

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ²⁰/₂₅-⁹/₁₀ ¹⁰/₂₅-¹⁸/₁₀ ¹⁰/₅₀-⁹/₁₀ ¹⁰/₂₅-⁹/₂₀ ³⁰/₂₅-⁹/₁₀ ¹⁰/₂₅-²⁷/₁₀ ¹⁰/₇₅-⁹/₁₀ ¹⁰/₂₅-⁹/₃₀ ⁵⁰/₂₅-⁹/₁₀ ¹⁰/₂₅-⁴⁵/₁₀ ¹⁰/₂₅-⁹/₅₀ ⁷⁰/₂₅-⁹/₁₀ ¹⁰/₂₅-⁶³/₁₀ ¹⁰/₂₅-⁹/₇₀

Subtract Fractions Calculator