Add 9/21 and 14/30
9/21 + 14/30 is 94/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
9/21 = 9 × 10/21 × 10 = 90/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
14/30 = 14 × 7/30 × 7 = 98/210 - Add the two like fractions:
90/210 + 98/210 = 90 + 98/210 = 188/210 - 188/210 simplified gives 94/105
- So, 9/21 + 14/30 = 94/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/21+14/30 9/21+28/30 9/42+14/30 9/21+14/60 27/21+14/30 9/21+42/30 9/63+14/30 9/21+14/90 45/21+14/30 9/21+70/30 63/21+14/30 9/21+98/30