Add 14/84 and 21/45
14/84 + 21/45 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
14/84 = 14 × 15/84 × 15 = 210/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
21/45 = 21 × 28/45 × 28 = 588/1260 - Add the two like fractions:
210/1260 + 588/1260 = 210 + 588/1260 = 798/1260 - 798/1260 simplified gives 19/30
- So, 14/84 + 21/45 = 19/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/84+21/45 14/84+42/45 14/84+21/90 42/84+21/45 14/84+63/45 70/84+21/45 98/84+21/45