Add 15/27 and 5/20
15/27 + 5/20 is 29/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
15/27 = 15 × 20/27 × 20 = 300/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
5/20 = 5 × 27/20 × 27 = 135/540 - Add the two like fractions:
300/540 + 135/540 = 300 + 135/540 = 435/540 - 435/540 simplified gives 29/36
- So, 15/27 + 5/20 = 29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+5/20 15/27+10/20 15/54+5/20 15/27+5/40 45/27+5/20 15/27+15/20 15/81+5/20 15/27+5/60 75/27+5/20 15/27+25/20 15/27+35/20