Add 9/56 and 15/81
9/56 + 15/81 is 523/1512.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
9/56 = 9 × 81/56 × 81 = 729/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
15/81 = 15 × 56/81 × 56 = 840/4536 - Add the two like fractions:
729/4536 + 840/4536 = 729 + 840/4536 = 1569/4536 - 1569/4536 simplified gives 523/1512
- So, 9/56 + 15/81 = 523/1512
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/56+15/81 9/56+30/81 27/56+15/81 9/56+45/81 45/56+15/81 9/56+75/81 63/56+15/81