Subtract 2/28 from 28/30
28/30 - 2/28 is 181/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
28/30 = 28 × 14/30 × 14 = 392/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Subtract the two like fractions:
392/420 - 30/420 = 392 - 30/420 = 362/420 - After reducing the fraction, the answer is 181/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/30-2/28 28/30-4/28 28/60-2/28 28/30-2/56 84/30-2/28 28/30-6/28 28/90-2/28 28/30-2/84 28/30-10/28 28/30-14/28