Add 15/27 and 35/40
15/27 + 35/40 is 103/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 40 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 27 × 40 = 1080,
15/27 = 15 × 40/27 × 40 = 600/1080 - Likewise, for the 2nd fraction, since 40 × 27 = 1080,
35/40 = 35 × 27/40 × 27 = 945/1080 - Add the two like fractions:
600/1080 + 945/1080 = 600 + 945/1080 = 1545/1080 - 1545/1080 simplified gives 103/72
- So, 15/27 + 35/40 = 103/72
In mixed form: 131/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+35/40 15/27+70/40 15/54+35/40 15/27+35/80 45/27+35/40 15/81+35/40 75/27+35/40