Add 16/40 and 3/81
16/40 + 3/81 is 59/135.
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,
16/40 = 16 × 81/40 × 81 = 1296/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
3/81 = 3 × 40/81 × 40 = 120/3240 - Add the two like fractions:
1296/3240 + 120/3240 = 1296 + 120/3240 = 1416/3240 - 1416/3240 simplified gives 59/135
- So, 16/40 + 3/81 = 59/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40+3/81 16/40+6/81 16/80+3/81 48/40+3/81 16/40+9/81 80/40+3/81 16/40+15/81 16/40+21/81