Add 80/12 and 45/56
1st number: 6 8/12, 2nd number: 45/56
80/12 + 45/56 is 1255/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
80/12 = 80 × 14/12 × 14 = 1120/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
45/56 = 45 × 3/56 × 3 = 135/168 - Add the two like fractions:
1120/168 + 135/168 = 1120 + 135/168 = 1255/168 - So, 80/12 + 45/56 = 1255/168
In mixed form: 779/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12+90/56 80/24+45/56 80/36+45/56 80/60+45/56 80/84+45/56