Add 63/40 and 3/81
1st number: 1 23/40, 2nd number: 3/81
63/40 + 3/81 is 1741/1080.
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,
63/40 = 63 × 81/40 × 81 = 5103/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
3/81 = 3 × 40/81 × 40 = 120/3240 - Add the two like fractions:
5103/3240 + 120/3240 = 5103 + 120/3240 = 5223/3240 - 5223/3240 simplified gives 1741/1080
- So, 63/40 + 3/81 = 1741/1080
In mixed form: 1661/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+6/81 63/80+3/81 63/40+9/81 63/40+15/81 63/40+21/81