Add 27/40 and 18/27
27/40 + 18/27 is 161/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
27/40 = 27 × 27/40 × 27 = 729/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
18/27 = 18 × 40/27 × 40 = 720/1080 - Add the two like fractions:
729/1080 + 720/1080 = 729 + 720/1080 = 1449/1080 - 1449/1080 simplified gives 161/120
- So, 27/40 + 18/27 = 161/120
In mixed form: 141/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40+18/27 27/40+36/27 27/80+18/27 27/40+18/54 81/40+18/27 27/40+54/27 27/40+18/81 27/40+90/27