Subtract 9/80 from 40/15
1st number: 2 10/15, 2nd number: 9/80
40/15 - 9/80 is 613/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
40/15 = 40 × 16/15 × 16 = 640/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
9/80 = 9 × 3/80 × 3 = 27/240 - Subtract the two like fractions:
640/240 - 27/240 = 640 - 27/240 = 613/240 - In mixed form: 2133/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-9/80 40/15-18/80 40/30-9/80 40/15-27/80 40/45-9/80 40/15-45/80 40/75-9/80 40/15-63/80