Answers

Subtract 84/3 from 20/84

1^st number: 20/84, 2^nd number: 28 0/3

20/84 - 84/3 is -583/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 3 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   20/84 = 20 × 1/84 × 1 = 20/84
3. Likewise, for the 2nd fraction, since 3 × 28 = 84,
   84/3 = 84 × 28/3 × 28 = 2352/84
4. Subtract the two like fractions:
   20/84 - 2352/84 = 20 - 2352/84 = -2332/84
5. After reducing the fraction, the answer is -583/21

MathStep (Works offline)

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

Related: ⁴⁰/₈₄-⁸⁴/₃ ²⁰/₈₄-⁸⁴/₆ ⁶⁰/₈₄-⁸⁴/₃ ²⁰/₈₄-⁸⁴/₉ ²⁰/₈₄-⁸⁴/₁₅ ²⁰/₈₄-⁸⁴/₂₁

Subtract Fractions Calculator