Subtract 3/7 from 30/10
1st number: 3 0/10, 2nd number: 3/7
30/10 - 3/7 is 18/7.
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,
30/10 = 30 × 7/10 × 7 = 210/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
3/7 = 3 × 10/7 × 10 = 30/70 - Subtract the two like fractions:
210/70 - 30/70 = 210 - 30/70 = 180/70 - After reducing the fraction, the answer is 18/7
- In mixed form: 24/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-3/7 30/10-6/7 30/20-3/7 30/10-3/14 90/10-3/7 30/10-9/7 30/10-3/21 30/10-15/7 30/50-3/7 30/10-3/35 30/10-21/7 30/70-3/7 30/10-3/49