Add 14/30 and 98/21
1st number: 14/30, 2nd number: 4 14/21
14/30 + 98/21 is 77/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Add the two like fractions:
98/210 + 980/210 = 98 + 980/210 = 1078/210 - 1078/210 simplified gives 77/15
- So, 14/30 + 98/21 = 77/15
In mixed form: 52/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/30+98/21 14/60+98/21 14/30+98/42 42/30+98/21 14/90+98/21 14/30+98/63 70/30+98/21 98/30+98/21