Subtract 1/40 from 12/3
1st number: 4 0/3, 2nd number: 1/40
12/3 - 1/40 is 159/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
12/3 = 12 × 40/3 × 40 = 480/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
1/40 = 1 × 3/40 × 3 = 3/120 - Subtract the two like fractions:
480/120 - 3/120 = 480 - 3/120 = 477/120 - After reducing the fraction, the answer is 159/40
- In mixed form: 339/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-1/40 12/3-2/40 12/6-1/40 12/3-1/80 36/3-1/40 12/3-3/40 12/9-1/40 60/3-1/40 12/3-5/40 12/15-1/40 84/3-1/40 12/3-7/40 12/21-1/40