Subtract 12/40 from 9/6
1st number: 1 3/6, 2nd number: 12/40
9/6 - 12/40 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
9/6 = 9 × 20/6 × 20 = 180/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Subtract the two like fractions:
180/120 - 36/120 = 180 - 36/120 = 144/120 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/6-12/40 9/6-24/40 9/12-12/40 9/6-12/80 27/6-12/40 9/6-36/40 9/18-12/40 45/6-12/40 9/6-60/40 9/30-12/40 63/6-12/40 9/6-84/40 9/42-12/40