Add 15/12 and 90/16
1st number: 1 3/12, 2nd number: 5 10/16
15/12 + 90/16 is 55/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 16 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 12 × 4 = 48,
15/12 = 15 × 4/12 × 4 = 60/48 - Likewise, for the 2nd fraction, since 16 × 3 = 48,
90/16 = 90 × 3/16 × 3 = 270/48 - Add the two like fractions:
60/48 + 270/48 = 60 + 270/48 = 330/48 - 330/48 simplified gives 55/8
- So, 15/12 + 90/16 = 55/8
In mixed form: 67/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+90/16 15/24+90/16 15/12+90/32 45/12+90/16 15/36+90/16 15/12+90/48 75/12+90/16 15/60+90/16 15/12+90/80 15/84+90/16