Subtract 9/40 from 80/2
1st number: 40 0/2, 2nd number: 9/40
80/2 - 9/40 is 1591/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 2 × 20 = 40,
80/2 = 80 × 20/2 × 20 = 1600/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
9/40 = 9 × 1/40 × 1 = 9/40 - Subtract the two like fractions:
1600/40 - 9/40 = 1600 - 9/40 = 1591/40 - In mixed form: 3931/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/2-18/40 80/4-9/40 80/2-9/80 80/2-27/40 80/6-9/40 80/2-45/40 80/10-9/40 80/2-63/40 80/14-9/40