Add 14/30 and 21/27
14/30 + 21/27 is 56/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
14/30 = 14 × 9/30 × 9 = 126/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Add the two like fractions:
126/270 + 210/270 = 126 + 210/270 = 336/270 - 336/270 simplified gives 56/45
- So, 14/30 + 21/27 = 56/45
In mixed form: 111/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/30+21/27 14/30+42/27 14/60+21/27 14/30+21/54 42/30+21/27 14/30+63/27 14/90+21/27 14/30+21/81 70/30+21/27 98/30+21/27