Subtract 28/84 from 20/2
1st number: 10 0/2, 2nd number: 28/84
20/2 - 28/84 is 29/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
20/2 = 20 × 42/2 × 42 = 840/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
28/84 = 28 × 1/84 × 1 = 28/84 - Subtract the two like fractions:
840/84 - 28/84 = 840 - 28/84 = 812/84 - After reducing the fraction, the answer is 29/3
- In mixed form: 92/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/2-28/84 20/2-56/84 20/4-28/84 60/2-28/84 20/6-28/84 20/10-28/84 20/14-28/84