Answers

Subtract 45/50 from 40/20

1^st number: 2 0/20, 2^nd number: 45/50

40/20 - 45/50 is 11/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 50 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 20 × 5 = 100,
   40/20 = 40 × 5/20 × 5 = 200/100
3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
   45/50 = 45 × 2/50 × 2 = 90/100
4. Subtract the two like fractions:
   200/100 - 90/100 = 200 - 90/100 = 110/100
5. After reducing the fraction, the answer is 11/10
6. In mixed form: 11/10

MathStep (Works offline)

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

Related: ⁸⁰/₂₀-⁴⁵/₅₀ ⁴⁰/₂₀-⁹⁰/₅₀ ⁴⁰/₆₀-⁴⁵/₅₀

Subtract Fractions Calculator