Subtract 28/7 from 2/10
1st number: 2/10, 2nd number: 4 0/7
2/10 - 28/7 is -19/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
2/10 = 2 × 7/10 × 7 = 14/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
28/7 = 28 × 10/7 × 10 = 280/70 - Subtract the two like fractions:
14/70 - 280/70 = 14 - 280/70 = -266/70 - After reducing the fraction, the answer is -19/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/10-28/7 2/10-56/7 2/20-28/7 2/10-28/14 6/10-28/7 2/10-84/7 2/30-28/7 2/10-28/21 2/50-28/7 2/10-28/35 14/10-28/7 2/70-28/7 2/10-28/49