Add 20/15 and 40/27
1st number: 1 5/15, 2nd number: 1 13/27
20/15 + 40/27 is 76/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
20/15 = 20 × 9/15 × 9 = 180/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
40/27 = 40 × 5/27 × 5 = 200/135 - Add the two like fractions:
180/135 + 200/135 = 180 + 200/135 = 380/135 - 380/135 simplified gives 76/27
- So, 20/15 + 40/27 = 76/27
In mixed form: 222/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+40/27 20/15+80/27 20/30+40/27 20/15+40/54 60/15+40/27 20/45+40/27 20/15+40/81 20/75+40/27