Subtract 1/7 from 30/2
1st number: 15 0/2, 2nd number: 1/7
30/2 - 1/7 is 104/7.
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,
30/2 = 30 × 7/2 × 7 = 210/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
1/7 = 1 × 2/7 × 2 = 2/14 - Subtract the two like fractions:
210/14 - 2/14 = 210 - 2/14 = 208/14 - After reducing the fraction, the answer is 104/7
- In mixed form: 146/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2-1/7 30/2-2/7 30/4-1/7 30/2-1/14 90/2-1/7 30/2-3/7 30/6-1/7 30/2-1/21 30/2-5/7 30/10-1/7 30/2-1/35 30/14-1/7 30/2-1/49