Answers

Subtract 81/98 from 8/4

1^st number: 2 0/4, 2^nd number: 81/98

8/4 - 81/98 is 115/98.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 98 is 196
   
   Next, find the equivalent fraction of both fractional numbers with denominator 196
2. For the 1st fraction, since 4 × 49 = 196,
   8/4 = 8 × 49/4 × 49 = 392/196
3. Likewise, for the 2nd fraction, since 98 × 2 = 196,
   81/98 = 81 × 2/98 × 2 = 162/196
4. Subtract the two like fractions:
   392/196 - 162/196 = 392 - 162/196 = 230/196
5. After reducing the fraction, the answer is 115/98
6. In mixed form: 117/98

MathStep (Works offline)

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

Related: ¹⁶/₄-⁸¹/₉₈ ²⁴/₄-⁸¹/₉₈ ⁸/₁₂-⁸¹/₉₈ ⁴⁰/₄-⁸¹/₉₈ ⁸/₂₀-⁸¹/₉₈ ⁵⁶/₄-⁸¹/₉₈ ⁸/₂₈-⁸¹/₉₈

Subtract Fractions Calculator