Answers

Subtract 45/50 from 54/18

1^st number: 3 0/18, 2^nd number: 45/50

54/18 - 45/50 is 21/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 18 × 25 = 450,
   54/18 = 54 × 25/18 × 25 = 1350/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   45/50 = 45 × 9/50 × 9 = 405/450
4. Subtract the two like fractions:
   1350/450 - 405/450 = 1350 - 405/450 = 945/450
5. After reducing the fraction, the answer is 21/10
6. In mixed form: 21/10

MathStep (Works offline)

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

Related: ⁵⁴/₁₈-⁹⁰/₅₀ ⁵⁴/₃₆-⁴⁵/₅₀ ⁵⁴/₉₀-⁴⁵/₅₀

Subtract Fractions Calculator