Subtract 8/7 from 2/30
1st number: 2/30, 2nd number: 1 1/7
2/30 - 8/7 is -113/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
2/30 = 2 × 7/30 × 7 = 14/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
8/7 = 8 × 30/7 × 30 = 240/210 - Subtract the two like fractions:
14/210 - 240/210 = 14 - 240/210 = -226/210 - After reducing the fraction, the answer is -113/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/30-8/7 2/30-16/7 2/60-8/7 2/30-8/14 6/30-8/7 2/30-24/7 2/90-8/7 2/30-8/21 10/30-8/7 2/30-40/7 2/30-8/35 14/30-8/7 2/30-56/7 2/30-8/49