Subtract 3/80 from 15/4
1st number: 3 3/4, 2nd number: 3/80
15/4 - 3/80 is 297/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
15/4 = 15 × 20/4 × 20 = 300/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
3/80 = 3 × 1/80 × 1 = 3/80 - Subtract the two like fractions:
300/80 - 3/80 = 300 - 3/80 = 297/80 - In mixed form: 357/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-3/80 15/4-6/80 15/8-3/80 45/4-3/80 15/4-9/80 15/12-3/80 75/4-3/80 15/4-15/80 15/20-3/80 15/4-21/80 15/28-3/80