Add 20/81 and 40/35
1st number: 20/81, 2nd number: 1 5/35
20/81 + 40/35 is 788/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 35 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 81 × 35 = 2835,
20/81 = 20 × 35/81 × 35 = 700/2835 - Likewise, for the 2nd fraction, since 35 × 81 = 2835,
40/35 = 40 × 81/35 × 81 = 3240/2835 - Add the two like fractions:
700/2835 + 3240/2835 = 700 + 3240/2835 = 3940/2835 - 3940/2835 simplified gives 788/567
- So, 20/81 + 40/35 = 788/567
In mixed form: 1221/567
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/81+40/35 20/81+80/35 20/81+40/70 60/81+40/35