Add 9/80 and 48/81
9/80 + 48/81 is 1523/2160.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 81 is 6480
Next, find the equivalent fraction of both fractional numbers with denominator 6480 - For the 1st fraction, since 80 × 81 = 6480,
9/80 = 9 × 81/80 × 81 = 729/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
48/81 = 48 × 80/81 × 80 = 3840/6480 - Add the two like fractions:
729/6480 + 3840/6480 = 729 + 3840/6480 = 4569/6480 - 4569/6480 simplified gives 1523/2160
- So, 9/80 + 48/81 = 1523/2160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/80+48/81 9/80+96/81 27/80+48/81 45/80+48/81 63/80+48/81