Add 45/27 and 4/81
1st number: 1 18/27, 2nd number: 4/81
45/27 + 4/81 is 139/81.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 27 × 3 = 81,
45/27 = 45 × 3/27 × 3 = 135/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
4/81 = 4 × 1/81 × 1 = 4/81 - Add the two like fractions:
135/81 + 4/81 = 135 + 4/81 = 139/81 - So, 45/27 + 4/81 = 139/81
In mixed form: 158/81
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/27+4/81 45/27+8/81 45/54+4/81 45/27+12/81 45/81+4/81 45/27+20/81 45/27+28/81