Add 63/4 and 80/3
1st number: 15 3/4, 2nd number: 26 2/3
63/4 + 80/3 is 509/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 3 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
63/4 = 63 × 3/4 × 3 = 189/12 - Likewise, for the 2nd fraction, since 3 × 4 = 12,
80/3 = 80 × 4/3 × 4 = 320/12 - Add the two like fractions:
189/12 + 320/12 = 189 + 320/12 = 509/12 - So, 63/4 + 80/3 = 509/12
In mixed form: 425/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/8+80/3 63/4+80/6 63/12+80/3 63/4+80/9 63/20+80/3 63/4+80/15 63/28+80/3 63/4+80/21