Answers

Subtract 81/98 from 48/20

1^st number: 2 8/20, 2^nd number: 81/98

48/20 - 81/98 is 771/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 98 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   48/20 = 48 × 49/20 × 49 = 2352/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   81/98 = 81 × 10/98 × 10 = 810/980
4. Subtract the two like fractions:
   2352/980 - 810/980 = 2352 - 810/980 = 1542/980
5. After reducing the fraction, the answer is 771/490
6. In mixed form: 1281/490

MathStep (Works offline)

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

Related: ⁹⁶/₂₀-⁸¹/₉₈ ⁴⁸/₄₀-⁸¹/₉₈ ⁴⁸/₆₀-⁸¹/₉₈

Subtract Fractions Calculator