Answers

Subtract 63/40 from 5/18

1^st number: 5/18, 2^nd number: 1 23/40

5/18 - 63/40 is -467/360.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 18 × 20 = 360,
   5/18 = 5 × 20/18 × 20 = 100/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   63/40 = 63 × 9/40 × 9 = 567/360
4. Subtract the two like fractions:
   100/360 - 567/360 = 100 - 567/360 = -467/360

MathStep (Works offline)

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

Related: ¹⁰/₁₈-⁶³/₄₀ ⁵/₃₆-⁶³/₄₀ ⁵/₁₈-⁶³/₈₀ ¹⁵/₁₈-⁶³/₄₀ ⁵/₅₄-⁶³/₄₀ ²⁵/₁₈-⁶³/₄₀ ⁵/₉₀-⁶³/₄₀ ³⁵/₁₈-⁶³/₄₀

Subtract Fractions Calculator