Answers

Subtract 9/40 from 25/7

1^st number: 3 4/7, 2^nd number: 9/40

25/7 - 9/40 is 937/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 7 × 40 = 280,
   25/7 = 25 × 40/7 × 40 = 1000/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   9/40 = 9 × 7/40 × 7 = 63/280
4. Subtract the two like fractions:
   1000/280 - 63/280 = 1000 - 63/280 = 937/280
5. In mixed form: 397/280

MathStep (Works offline)

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

Related: ⁵⁰/₇-⁹/₄₀ ²⁵/₇-¹⁸/₄₀ ²⁵/₁₄-⁹/₄₀ ²⁵/₇-⁹/₈₀ ⁷⁵/₇-⁹/₄₀ ²⁵/₇-²⁷/₄₀ ²⁵/₂₁-⁹/₄₀ ²⁵/₇-⁴⁵/₄₀ ²⁵/₃₅-⁹/₄₀ ²⁵/₇-⁶³/₄₀ ²⁵/₄₉-⁹/₄₀

Subtract Fractions Calculator