Add 70/81 and 12/16
70/81 + 12/16 is 523/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 16 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 81 × 16 = 1296,
70/81 = 70 × 16/81 × 16 = 1120/1296 - Likewise, for the 2nd fraction, since 16 × 81 = 1296,
12/16 = 12 × 81/16 × 81 = 972/1296 - Add the two like fractions:
1120/1296 + 972/1296 = 1120 + 972/1296 = 2092/1296 - 2092/1296 simplified gives 523/324
- So, 70/81 + 12/16 = 523/324
In mixed form: 1199/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/81+24/16 70/81+12/32 70/81+36/16 70/81+12/48 70/81+60/16 70/81+12/80 70/81+84/16