Answers

Subtract 84/80 from 28/9

1^st number: 3 1/9, 2^nd number: 1 4/80

28/9 - 84/80 is 371/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 80 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 9 × 80 = 720,
   28/9 = 28 × 80/9 × 80 = 2240/720
3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
   84/80 = 84 × 9/80 × 9 = 756/720
4. Subtract the two like fractions:
   2240/720 - 756/720 = 2240 - 756/720 = 1484/720
5. After reducing the fraction, the answer is 371/180
6. In mixed form: 211/180

MathStep (Works offline)

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

Related: ⁵⁶/₉-⁸⁴/₈₀ ²⁸/₁₈-⁸⁴/₈₀ ⁸⁴/₉-⁸⁴/₈₀ ²⁸/₂₇-⁸⁴/₈₀ ²⁸/₄₅-⁸⁴/₈₀ ²⁸/₆₃-⁸⁴/₈₀

Subtract Fractions Calculator