Add 15/27 and 3/10
15/27 + 3/10 is 77/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
15/27 = 15 × 10/27 × 10 = 150/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
3/10 = 3 × 27/10 × 27 = 81/270 - Add the two like fractions:
150/270 + 81/270 = 150 + 81/270 = 231/270 - 231/270 simplified gives 77/90
- So, 15/27 + 3/10 = 77/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/27+3/10 15/27+6/10 15/54+3/10 15/27+3/20 45/27+3/10 15/27+9/10 15/81+3/10 15/27+3/30 75/27+3/10 15/27+15/10 15/27+3/50 15/27+21/10 15/27+3/70