Subtract 3/80 from 15/2
1st number: 7 1/2, 2nd number: 3/80
15/2 - 3/80 is 597/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
15/2 = 15 × 40/2 × 40 = 600/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Subtract the two like fractions:
600/80 - 3/80 = 600 - 3/80 = 597/80 - In mixed form: 737/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2-3/80 15/2-6/80 15/4-3/80 45/2-3/80 15/2-9/80 15/6-3/80 75/2-3/80 15/2-15/80 15/10-3/80 15/2-21/80 15/14-3/80