Add 5/15 and 72/45
1st number: 5/15, 2nd number: 1 27/45
5/15 + 72/45 is 29/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
5/15 = 5 × 3/15 × 3 = 15/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Add the two like fractions:
15/45 + 72/45 = 15 + 72/45 = 87/45 - 87/45 simplified gives 29/15
- So, 5/15 + 72/45 = 29/15
In mixed form: 114/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15+72/45 5/30+72/45 5/15+72/90 5/45+72/45 25/15+72/45 5/75+72/45 35/15+72/45