Subtract 70/30 from 15/14
1st number: 1 1/14, 2nd number: 2 10/30
15/14 - 70/30 is -53/42.
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,
15/14 = 15 × 15/14 × 15 = 225/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Subtract the two like fractions:
225/210 - 490/210 = 225 - 490/210 = -265/210 - After reducing the fraction, the answer is -53/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/14-70/30 15/28-70/30 15/14-70/60 45/14-70/30 15/42-70/30 15/14-70/90 75/14-70/30 15/70-70/30 15/98-70/30