Answers

Subtract 40/18 from 45/49

1^st number: 45/49, 2^nd number: 2 4/18

45/49 - 40/18 is -575/441.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 18 is 882
   
   Next, find the equivalent fraction of both fractional numbers with denominator 882
2. For the 1st fraction, since 49 × 18 = 882,
   45/49 = 45 × 18/49 × 18 = 810/882
3. Likewise, for the 2nd fraction, since 18 × 49 = 882,
   40/18 = 40 × 49/18 × 49 = 1960/882
4. Subtract the two like fractions:
   810/882 - 1960/882 = 810 - 1960/882 = -1150/882
5. After reducing the fraction, the answer is -575/441

MathStep (Works offline)

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

Related: ⁹⁰/₄₉-⁴⁰/₁₈ ⁴⁵/₄₉-⁸⁰/₁₈ ⁴⁵/₉₈-⁴⁰/₁₈ ⁴⁵/₄₉-⁴⁰/₃₆ ⁴⁵/₄₉-⁴⁰/₅₄ ⁴⁵/₄₉-⁴⁰/₉₀

Subtract Fractions Calculator