Subtract 30/3 from 28/84
1st number: 28/84, 2nd number: 10 0/3
28/84 - 30/3 is -29/3.
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,
28/84 = 28 × 1/84 × 1 = 28/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
30/3 = 30 × 28/3 × 28 = 840/84 - Subtract the two like fractions:
28/84 - 840/84 = 28 - 840/84 = -812/84 - After reducing the fraction, the answer is -29/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-30/3 28/84-60/3 28/84-30/6 28/84-90/3 28/84-30/9 28/84-30/15 28/84-30/21