Add 14/72 and 28/81
14/72 + 28/81 is 175/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 72 × 9 = 648,
14/72 = 14 × 9/72 × 9 = 126/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
28/81 = 28 × 8/81 × 8 = 224/648 - Add the two like fractions:
126/648 + 224/648 = 126 + 224/648 = 350/648 - 350/648 simplified gives 175/324
- So, 14/72 + 28/81 = 175/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/72+28/81 14/72+56/81 42/72+28/81 14/72+84/81 70/72+28/81 98/72+28/81