Add 98/15 and 90/28
1st number: 6 8/15, 2nd number: 3 6/28
98/15 + 90/28 is 2047/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
98/15 = 98 × 28/15 × 28 = 2744/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Add the two like fractions:
2744/420 + 1350/420 = 2744 + 1350/420 = 4094/420 - 4094/420 simplified gives 2047/210
- So, 98/15 + 90/28 = 2047/210
In mixed form: 9157/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/30+90/28 98/15+90/56 98/45+90/28 98/15+90/84 98/75+90/28