Subtract 15/60 from 80/30
1st number: 2 20/30, 2nd number: 15/60
80/30 - 15/60 is 29/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
80/30 = 80 × 2/30 × 2 = 160/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
15/60 = 15 × 1/60 × 1 = 15/60 - Subtract the two like fractions:
160/60 - 15/60 = 160 - 15/60 = 145/60 - After reducing the fraction, the answer is 29/12
- In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/30-30/60 80/60-15/60 80/30-45/60 80/90-15/60 80/30-75/60