Add 5/80 and 10/81
5/80 + 10/81 is 241/1296.
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,
5/80 = 5 × 81/80 × 81 = 405/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
10/81 = 10 × 80/81 × 80 = 800/6480 - Add the two like fractions:
405/6480 + 800/6480 = 405 + 800/6480 = 1205/6480 - 1205/6480 simplified gives 241/1296
- So, 5/80 + 10/81 = 241/1296
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/80+10/81 5/80+20/81 15/80+10/81 5/80+30/81 25/80+10/81 5/80+50/81 35/80+10/81 5/80+70/81