Answers

Subtract 7/40 from 9/4

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

9/4 - 7/40 is 83/40.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 4 × 10 = 40,
   9/4 = 9 × 10/4 × 10 = 90/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   7/40 = 7 × 1/40 × 1 = 7/40
4. Subtract the two like fractions:
   90/40 - 7/40 = 90 - 7/40 = 83/40
5. In mixed form: 23/40

MathStep (Works offline)

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

Related: ¹⁸/₄-⁷/₄₀ ⁹/₄-¹⁴/₄₀ ⁹/₈-⁷/₄₀ ⁹/₄-⁷/₈₀ ²⁷/₄-⁷/₄₀ ⁹/₄-²¹/₄₀ ⁹/₁₂-⁷/₄₀ ⁴⁵/₄-⁷/₄₀ ⁹/₄-³⁵/₄₀ ⁹/₂₀-⁷/₄₀ ⁶³/₄-⁷/₄₀ ⁹/₄-⁴⁹/₄₀ ⁹/₂₈-⁷/₄₀

Subtract Fractions Calculator