Add 2/40 and 6/81
2/40 + 6/81 is 67/540.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
2/40 = 2 × 81/40 × 81 = 162/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
6/81 = 6 × 40/81 × 40 = 240/3240 - Add the two like fractions:
162/3240 + 240/3240 = 162 + 240/3240 = 402/3240 - 402/3240 simplified gives 67/540
- So, 2/40 + 6/81 = 67/540
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+6/81 2/40+12/81 2/80+6/81 6/40+6/81 2/40+18/81 10/40+6/81 2/40+30/81 14/40+6/81 2/40+42/81