Subtract 15/14 from 10/30
1st number: 10/30, 2nd number: 1 1/14
10/30 - 15/14 is -31/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
10/30 = 10 × 7/30 × 7 = 70/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
15/14 = 15 × 15/14 × 15 = 225/210 - Subtract the two like fractions:
70/210 - 225/210 = 70 - 225/210 = -155/210 - After reducing the fraction, the answer is -31/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/30-15/14 10/30-30/14 10/60-15/14 10/30-15/28 10/30-45/14 10/90-15/14 10/30-15/42 50/30-15/14 10/30-75/14 10/30-15/70 70/30-15/14 10/30-15/98