Subtract 28/30 from 3/14
3/14 - 28/30 is -151/210.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
3/14 = 3 × 15/14 × 15 = 45/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210 - Subtract the two like fractions:
45/210 - 196/210 = 45 - 196/210 = -151/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14-28/30 3/14-56/30 3/28-28/30 3/14-28/60 9/14-28/30 3/14-84/30 3/42-28/30 3/14-28/90 15/14-28/30 3/70-28/30 21/14-28/30 3/98-28/30