Subtract 5/3 from 20/84
1st number: 20/84, 2nd number: 1 2/3
20/84 - 5/3 is -10/7.
Steps for subtracting fractions
- 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 - For the 1st fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
5/3 = 5 × 28/3 × 28 = 140/84 - Subtract the two like fractions:
20/84 - 140/84 = 20 - 140/84 = -120/84 - After reducing the fraction, the answer is -10/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/84-5/3 20/84-10/3 20/84-5/6 60/84-5/3 20/84-15/3 20/84-5/9 20/84-25/3 20/84-5/15 20/84-35/3 20/84-5/21