Add 9/81 and 60/40
1st number: 9/81, 2nd number: 1 20/40
9/81 + 60/40 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 40 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 81 × 40 = 3240,
9/81 = 9 × 40/81 × 40 = 360/3240 - Likewise, for the 2nd fraction, since 40 × 81 = 3240,
60/40 = 60 × 81/40 × 81 = 4860/3240 - Add the two like fractions:
360/3240 + 4860/3240 = 360 + 4860/3240 = 5220/3240 - 5220/3240 simplified gives 29/18
- So, 9/81 + 60/40 = 29/18
In mixed form: 111/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/81+60/40 9/81+60/80 27/81+60/40 45/81+60/40 63/81+60/40