Add 90/4 and 28/15
1st number: 22 2/4, 2nd number: 1 13/15
90/4 + 28/15 is 731/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
90/4 = 90 × 15/4 × 15 = 1350/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
28/15 = 28 × 4/15 × 4 = 112/60 - Add the two like fractions:
1350/60 + 112/60 = 1350 + 112/60 = 1462/60 - 1462/60 simplified gives 731/30
- So, 90/4 + 28/15 = 731/30
In mixed form: 2411/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/4+56/15 90/8+28/15 90/4+28/30 90/4+84/15 90/12+28/15 90/4+28/45 90/20+28/15 90/4+28/75 90/28+28/15