Subtract 3/40 from 24/12
1st number: 2 0/12, 2nd number: 3/40
24/12 - 3/40 is 77/40.
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,
24/12 = 24 × 10/12 × 10 = 240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Subtract the two like fractions:
240/120 - 9/120 = 240 - 9/120 = 231/120 - After reducing the fraction, the answer is 77/40
- In mixed form: 137/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/12-3/40 24/12-6/40 24/12-3/80 72/12-3/40 24/12-9/40 24/36-3/40 24/12-15/40 24/60-3/40 24/12-21/40 24/84-3/40