Add 12/16 and 75/81
12/16 + 75/81 is 181/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
12/16 = 12 × 81/16 × 81 = 972/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
75/81 = 75 × 16/81 × 16 = 1200/1296 - Add the two like fractions:
972/1296 + 1200/1296 = 972 + 1200/1296 = 2172/1296 - 2172/1296 simplified gives 181/108
- So, 12/16 + 75/81 = 181/108
In mixed form: 173/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16+75/81 12/32+75/81 36/16+75/81 12/48+75/81 60/16+75/81 12/80+75/81 84/16+75/81