Add 28/12 and 5/80
1st number: 2 4/12, 2nd number: 5/80
28/12 + 5/80 is 115/48.
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,
28/12 = 28 × 20/12 × 20 = 560/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
5/80 = 5 × 3/80 × 3 = 15/240 - Add the two like fractions:
560/240 + 15/240 = 560 + 15/240 = 575/240 - 575/240 simplified gives 115/48
- So, 28/12 + 5/80 = 115/48
In mixed form: 219/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+5/80 28/12+10/80 28/24+5/80 84/12+5/80 28/12+15/80 28/36+5/80 28/12+25/80 28/60+5/80 28/12+35/80 28/84+5/80