Add 54/80 and 1/81
54/80 + 1/81 is 2227/3240.
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,
54/80 = 54 × 81/80 × 81 = 4374/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
1/81 = 1 × 80/81 × 80 = 80/6480 - Add the two like fractions:
4374/6480 + 80/6480 = 4374 + 80/6480 = 4454/6480 - 4454/6480 simplified gives 2227/3240
- So, 54/80 + 1/81 = 2227/3240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/80+2/81 54/80+3/81 54/80+5/81 54/80+7/81