Add 15/45 and 27/10
1st number: 15/45, 2nd number: 2 7/10
15/45 + 27/10 is 91/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
15/45 = 15 × 2/45 × 2 = 30/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
27/10 = 27 × 9/10 × 9 = 243/90 - Add the two like fractions:
30/90 + 243/90 = 30 + 243/90 = 273/90 - 273/90 simplified gives 91/30
- So, 15/45 + 27/10 = 91/30
In mixed form: 31/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/45+27/10 15/45+54/10 15/90+27/10 15/45+27/20 15/45+81/10 15/45+27/30 75/45+27/10 15/45+27/50 15/45+27/70