Subtract 28/40 from 9/6
1st number: 1 3/6, 2nd number: 28/40
9/6 - 28/40 is 4/5.
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,
28/40 = 28 × 3/40 × 3 = 84/120 - Subtract the two like fractions:
180/120 - 84/120 = 180 - 84/120 = 96/120 - After reducing the fraction, the answer is 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/6-28/40 9/6-56/40 9/12-28/40 9/6-28/80 27/6-28/40 9/6-84/40 9/18-28/40 45/6-28/40 9/30-28/40 63/6-28/40 9/42-28/40