Subtract 15/45 from 80/12
1st number: 6 8/12, 2nd number: 15/45
80/12 - 15/45 is 19/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
80/12 = 80 × 15/12 × 15 = 1200/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
15/45 = 15 × 4/45 × 4 = 60/180 - Subtract the two like fractions:
1200/180 - 60/180 = 1200 - 60/180 = 1140/180 - After reducing the fraction, the answer is 19/3
- In mixed form: 61/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-30/45 80/24-15/45 80/12-15/90 80/36-15/45 80/12-75/45 80/60-15/45 80/84-15/45