Subtract 90/30 from 10/14
1st number: 10/14, 2nd number: 3 0/30
10/14 - 90/30 is -16/7.
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,
10/14 = 10 × 15/14 × 15 = 150/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Subtract the two like fractions:
150/210 - 630/210 = 150 - 630/210 = -480/210 - After reducing the fraction, the answer is -16/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/14-90/30 10/28-90/30 10/14-90/60 30/14-90/30 10/42-90/30 50/14-90/30 10/70-90/30 70/14-90/30 10/98-90/30