Answers

Subtract 18/40 from 56/45

1^st number: 1 11/45, 2^nd number: 18/40

56/45 - 18/40 is 143/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 40 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 45 × 8 = 360,
   56/45 = 56 × 8/45 × 8 = 448/360
3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
   18/40 = 18 × 9/40 × 9 = 162/360
4. Subtract the two like fractions:
   448/360 - 162/360 = 448 - 162/360 = 286/360
5. After reducing the fraction, the answer is 143/180

MathStep (Works offline)

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

Related: ⁵⁶/₄₅-³⁶/₄₀ ⁵⁶/₉₀-¹⁸/₄₀ ⁵⁶/₄₅-¹⁸/₈₀ ⁵⁶/₄₅-⁵⁴/₄₀ ⁵⁶/₄₅-⁹⁰/₄₀

Subtract Fractions Calculator