Add 6/80 and 70/81
6/80 + 70/81 is 3043/3240.
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,
6/80 = 6 × 81/80 × 81 = 486/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
70/81 = 70 × 80/81 × 80 = 5600/6480 - Add the two like fractions:
486/6480 + 5600/6480 = 486 + 5600/6480 = 6086/6480 - 6086/6480 simplified gives 3043/3240
- So, 6/80 + 70/81 = 3043/3240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/80+70/81 18/80+70/81 30/80+70/81 42/80+70/81