Add 14/21 and 4/30
14/21 + 4/30 is 4/5.
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,
14/21 = 14 × 10/21 × 10 = 140/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
4/30 = 4 × 7/30 × 7 = 28/210 - Add the two like fractions:
140/210 + 28/210 = 140 + 28/210 = 168/210 - 168/210 simplified gives 4/5
- So, 14/21 + 4/30 = 4/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21+4/30 14/21+8/30 14/42+4/30 14/21+4/60 42/21+4/30 14/21+12/30 14/63+4/30 14/21+4/90 70/21+4/30 14/21+20/30 98/21+4/30 14/21+28/30