Subtract 28/7 from 2/4
1st number: 2/4, 2nd number: 4 0/7
2/4 - 28/7 is -7/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
2/4 = 2 × 7/4 × 7 = 14/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
28/7 = 28 × 4/7 × 4 = 112/28 - Subtract the two like fractions:
14/28 - 112/28 = 14 - 112/28 = -98/28 - After reducing the fraction, the answer is -7/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/4-56/7 2/8-28/7 2/4-28/14 6/4-28/7 2/4-84/7 2/12-28/7 2/4-28/21 10/4-28/7 2/20-28/7 2/4-28/35 14/4-28/7 2/28-28/7 2/4-28/49