Subtract 30/10 from 40/12
1st number: 3 4/12, 2nd number: 3 0/10
40/12 - 30/10 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 10 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
40/12 = 40 × 5/12 × 5 = 200/60 - Likewise, for the 2nd fraction, since 10 × 6 = 60,
30/10 = 30 × 6/10 × 6 = 180/60 - Subtract the two like fractions:
200/60 - 180/60 = 200 - 180/60 = 20/60 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-30/10 40/12-60/10 40/24-30/10 40/12-30/20 40/12-90/10 40/36-30/10 40/60-30/10 40/12-30/50 40/84-30/10 40/12-30/70