Add 50/12 and 81/80
1st number: 4 2/12, 2nd number: 1 1/80
50/12 + 81/80 is 1243/240.
Steps for adding 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,
50/12 = 50 × 20/12 × 20 = 1000/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Add the two like fractions:
1000/240 + 243/240 = 1000 + 243/240 = 1243/240 - So, 50/12 + 81/80 = 1243/240
In mixed form: 543/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/24+81/80 50/36+81/80 50/60+81/80 50/84+81/80