Add 15/28 and 90/3
1st number: 15/28, 2nd number: 30 0/3
15/28 + 90/3 is 855/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 3 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
15/28 = 15 × 3/28 × 3 = 45/84 - Likewise, for the 2nd fraction, since 3 × 28 = 84,
90/3 = 90 × 28/3 × 28 = 2520/84 - Add the two like fractions:
45/84 + 2520/84 = 45 + 2520/84 = 2565/84 - 2565/84 simplified gives 855/28
- So, 15/28 + 90/3 = 855/28
In mixed form: 3015/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28+90/3 15/56+90/3 15/28+90/6 45/28+90/3 15/84+90/3 15/28+90/9 75/28+90/3 15/28+90/15 15/28+90/21