Add 7/54 and 40/81
7/54 + 40/81 is 101/162.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 54 × 3 = 162,
7/54 = 7 × 3/54 × 3 = 21/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
40/81 = 40 × 2/81 × 2 = 80/162 - Add the two like fractions:
21/162 + 80/162 = 21 + 80/162 = 101/162 - So, 7/54 + 40/81 = 101/162
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54+40/81 7/54+80/81 21/54+40/81 35/54+40/81 49/54+40/81