Answers

Subtract 45/18 from 28/50

1^st number: 28/50, 2^nd number: 2 9/18

28/50 - 45/18 is -97/50.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 18 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 50 × 9 = 450,
   28/50 = 28 × 9/50 × 9 = 252/450
3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
   45/18 = 45 × 25/18 × 25 = 1125/450
4. Subtract the two like fractions:
   252/450 - 1125/450 = 252 - 1125/450 = -873/450
5. After reducing the fraction, the answer is -97/50

MathStep (Works offline)

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

Related: ⁵⁶/₅₀-⁴⁵/₁₈ ²⁸/₅₀-⁹⁰/₁₈ ²⁸/₅₀-⁴⁵/₃₆ ⁸⁴/₅₀-⁴⁵/₁₈ ²⁸/₅₀-⁴⁵/₅₄ ²⁸/₅₀-⁴⁵/₉₀

Subtract Fractions Calculator