Subtract 49/80 from 15/12
1st number: 1 3/12, 2nd number: 49/80
15/12 - 49/80 is 51/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
15/12 = 15 × 20/12 × 20 = 300/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
49/80 = 49 × 3/80 × 3 = 147/240 - Subtract the two like fractions:
300/240 - 147/240 = 300 - 147/240 = 153/240 - After reducing the fraction, the answer is 51/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12-49/80 15/12-98/80 15/24-49/80 45/12-49/80 15/36-49/80 75/12-49/80 15/60-49/80 15/84-49/80