Subtract 8/7 from 30/3
1st number: 10 0/3, 2nd number: 1 1/7
30/3 - 8/7 is 62/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 7 is 21
Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,
30/3 = 30 × 7/3 × 7 = 210/21 - Likewise, for the 2nd fraction, since 7 × 3 = 21,
8/7 = 8 × 3/7 × 3 = 24/21 - Subtract the two like fractions:
210/21 - 24/21 = 210 - 24/21 = 186/21 - After reducing the fraction, the answer is 62/7
- In mixed form: 86/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3-8/7 30/3-16/7 30/6-8/7 30/3-8/14 90/3-8/7 30/3-24/7 30/9-8/7 30/3-8/21 30/3-40/7 30/15-8/7 30/3-8/35 30/3-56/7 30/21-8/7 30/3-8/49