Subtract 8/12 from 30/10
1st number: 3 0/10, 2nd number: 8/12
30/10 - 8/12 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 10 × 6 = 60,
30/10 = 30 × 6/10 × 6 = 180/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
8/12 = 8 × 5/12 × 5 = 40/60 - Subtract the two like fractions:
180/60 - 40/60 = 180 - 40/60 = 140/60 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10-8/12 30/10-16/12 30/20-8/12 30/10-8/24 90/10-8/12 30/10-24/12 30/10-8/36 30/10-40/12 30/50-8/12 30/10-8/60 30/10-56/12 30/70-8/12 30/10-8/84