Add 14/80 and 70/81
14/80 + 70/81 is 3367/3240.
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,
14/80 = 14 × 81/80 × 81 = 1134/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
70/81 = 70 × 80/81 × 80 = 5600/6480 - Add the two like fractions:
1134/6480 + 5600/6480 = 1134 + 5600/6480 = 6734/6480 - 6734/6480 simplified gives 3367/3240
- So, 14/80 + 70/81 = 3367/3240
In mixed form: 1127/3240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/80+70/81 42/80+70/81 70/80+70/81 98/80+70/81