Subtract 35/9 from 20/84
1st number: 20/84, 2nd number: 3 8/9
20/84 - 35/9 is -230/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
20/84 = 20 × 3/84 × 3 = 60/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
35/9 = 35 × 28/9 × 28 = 980/252 - Subtract the two like fractions:
60/252 - 980/252 = 60 - 980/252 = -920/252 - After reducing the fraction, the answer is -230/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84-35/9 20/84-70/9 20/84-35/18 60/84-35/9 20/84-35/27 20/84-35/45 20/84-35/63