Subtract 20/40 from 35/12
1st number: 2 11/12, 2nd number: 20/40
35/12 - 20/40 is 29/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
35/12 = 35 × 10/12 × 10 = 350/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
20/40 = 20 × 3/40 × 3 = 60/120 - Subtract the two like fractions:
350/120 - 60/120 = 350 - 60/120 = 290/120 - After reducing the fraction, the answer is 29/12
- In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12-20/40 35/24-20/40 35/12-20/80 35/12-60/40 35/36-20/40 35/60-20/40 35/84-20/40