Answers

Subtract 25/10 from 9/7

1^st number: 1 2/7, 2^nd number: 2 5/10

9/7 - 25/10 is -17/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 10 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 7 × 10 = 70,
   9/7 = 9 × 10/7 × 10 = 90/70
3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
   25/10 = 25 × 7/10 × 7 = 175/70
4. Subtract the two like fractions:
   90/70 - 175/70 = 90 - 175/70 = -85/70
5. After reducing the fraction, the answer is -17/14

MathStep (Works offline)

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

Related: ¹⁸/₇-²⁵/₁₀ ⁹/₇-⁵⁰/₁₀ ⁹/₁₄-²⁵/₁₀ ⁹/₇-²⁵/₂₀ ²⁷/₇-²⁵/₁₀ ⁹/₇-⁷⁵/₁₀ ⁹/₂₁-²⁵/₁₀ ⁹/₇-²⁵/₃₀ ⁴⁵/₇-²⁵/₁₀ ⁹/₃₅-²⁵/₁₀ ⁹/₇-²⁵/₅₀ ⁶³/₇-²⁵/₁₀ ⁹/₄₉-²⁵/₁₀ ⁹/₇-²⁵/₇₀

Subtract Fractions Calculator