Add 28/12 and 90/5
1st number: 2 4/12, 2nd number: 18 0/5
28/12 + 90/5 is 61/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
28/12 = 28 × 5/12 × 5 = 140/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
90/5 = 90 × 12/5 × 12 = 1080/60 - Add the two like fractions:
140/60 + 1080/60 = 140 + 1080/60 = 1220/60 - 1220/60 simplified gives 61/3
- So, 28/12 + 90/5 = 61/3
In mixed form: 201/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+90/5 28/24+90/5 28/12+90/10 84/12+90/5 28/36+90/5 28/12+90/15 28/60+90/5 28/12+90/25 28/84+90/5 28/12+90/35