Add 28/15 and 90/60
1st number: 1 13/15, 2nd number: 1 30/60
28/15 + 90/60 is 101/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Add the two like fractions:
112/60 + 90/60 = 112 + 90/60 = 202/60 - 202/60 simplified gives 101/30
- So, 28/15 + 90/60 = 101/30
In mixed form: 311/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+90/60 28/30+90/60 84/15+90/60 28/45+90/60 28/75+90/60