Add 30/15 and 56/72
1st number: 2 0/15, 2nd number: 56/72
30/15 + 56/72 is 25/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
30/15 = 30 × 24/15 × 24 = 720/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
56/72 = 56 × 5/72 × 5 = 280/360 - Add the two like fractions:
720/360 + 280/360 = 720 + 280/360 = 1000/360 - 1000/360 simplified gives 25/9
- So, 30/15 + 56/72 = 25/9
In mixed form: 27/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+56/72 90/15+56/72 30/45+56/72 30/75+56/72