Answers

Subtract 3/90 from 49/20

1^st number: 2 9/20, 2^nd number: 3/90

49/20 - 3/90 is 29/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   49/20 = 49 × 9/20 × 9 = 441/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   3/90 = 3 × 2/90 × 2 = 6/180
4. Subtract the two like fractions:
   441/180 - 6/180 = 441 - 6/180 = 435/180
5. After reducing the fraction, the answer is 29/12
6. In mixed form: 25/12

MathStep (Works offline)

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

Related: ⁹⁸/₂₀-³/₉₀ ⁴⁹/₂₀-⁶/₉₀ ⁴⁹/₄₀-³/₉₀ ⁴⁹/₂₀-⁹/₉₀ ⁴⁹/₆₀-³/₉₀ ⁴⁹/₂₀-¹⁵/₉₀ ⁴⁹/₂₀-²¹/₉₀

Subtract Fractions Calculator