Add 80/60 and 63/12
1st number: 1 20/60, 2nd number: 5 3/12
80/60 + 63/12 is 79/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
80/60 = 80 × 1/60 × 1 = 80/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
63/12 = 63 × 5/12 × 5 = 315/60 - Add the two like fractions:
80/60 + 315/60 = 80 + 315/60 = 395/60 - 395/60 simplified gives 79/12
- So, 80/60 + 63/12 = 79/12
In mixed form: 67/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+63/24 80/60+63/36 80/60+63/60 80/60+63/84