Subtract 3/84 from 20/9
1st number: 2 2/9, 2nd number: 3/84
20/9 - 3/84 is 551/252.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
20/9 = 20 × 28/9 × 28 = 560/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
3/84 = 3 × 3/84 × 3 = 9/252 - Subtract the two like fractions:
560/252 - 9/252 = 560 - 9/252 = 551/252 - In mixed form: 247/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/9-3/84 20/9-6/84 20/18-3/84 60/9-3/84 20/9-9/84 20/27-3/84 20/9-15/84 20/45-3/84 20/9-21/84 20/63-3/84