Subtract 30/7 from 28/2
1st number: 14 0/2, 2nd number: 4 2/7
28/2 - 30/7 is 68/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
28/2 = 28 × 7/2 × 7 = 196/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
30/7 = 30 × 2/7 × 2 = 60/14 - Subtract the two like fractions:
196/14 - 60/14 = 196 - 60/14 = 136/14 - After reducing the fraction, the answer is 68/7
- In mixed form: 95/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/2-30/7 28/2-60/7 28/4-30/7 28/2-30/14 84/2-30/7 28/2-90/7 28/6-30/7 28/2-30/21 28/10-30/7 28/2-30/35 28/14-30/7 28/2-30/49