Add 98/30 and 90/28
1st number: 3 8/30, 2nd number: 3 6/28
98/30 + 90/28 is 1361/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
98/30 = 98 × 14/30 × 14 = 1372/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Add the two like fractions:
1372/420 + 1350/420 = 1372 + 1350/420 = 2722/420 - 2722/420 simplified gives 1361/210
- So, 98/30 + 90/28 = 1361/210
In mixed form: 6101/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/60+90/28 98/30+90/56 98/90+90/28 98/30+90/84