Subtract 32/30 from 2/28
1st number: 2/28, 2nd number: 1 2/30
2/28 - 32/30 is -209/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
2/28 = 2 × 15/28 × 15 = 30/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
32/30 = 32 × 14/30 × 14 = 448/420 - Subtract the two like fractions:
30/420 - 448/420 = 30 - 448/420 = -418/420 - After reducing the fraction, the answer is -209/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/28-32/30 2/28-64/30 2/56-32/30 2/28-32/60 6/28-32/30 2/28-96/30 2/84-32/30 2/28-32/90 10/28-32/30 14/28-32/30