Subtract 35/30 from 3/28
1st number: 3/28, 2nd number: 1 5/30
3/28 - 35/30 is -89/84.
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,
3/28 = 3 × 15/28 × 15 = 45/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
35/30 = 35 × 14/30 × 14 = 490/420 - Subtract the two like fractions:
45/420 - 490/420 = 45 - 490/420 = -445/420 - After reducing the fraction, the answer is -89/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-35/30 3/28-70/30 3/56-35/30 3/28-35/60 9/28-35/30 3/84-35/30 3/28-35/90 15/28-35/30 21/28-35/30