Add 9/30 and 14/21
9/30 + 14/21 is 29/30.
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,
9/30 = 9 × 7/30 × 7 = 63/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
14/21 = 14 × 10/21 × 10 = 140/210 - Add the two like fractions:
63/210 + 140/210 = 63 + 140/210 = 203/210 - 203/210 simplified gives 29/30
- So, 9/30 + 14/21 = 29/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30+14/21 9/30+28/21 9/60+14/21 9/30+14/42 27/30+14/21 9/30+42/21 9/90+14/21 9/30+14/63 45/30+14/21 9/30+70/21 63/30+14/21 9/30+98/21