Add 28/72 and 35/15
1st number: 28/72, 2nd number: 2 5/15
28/72 + 35/15 is 49/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
35/15 = 35 × 24/15 × 24 = 840/360 - Add the two like fractions:
140/360 + 840/360 = 140 + 840/360 = 980/360 - 980/360 simplified gives 49/18
- So, 28/72 + 35/15 = 49/18
In mixed form: 213/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+35/15 28/72+70/15 28/72+35/30 84/72+35/15 28/72+35/45 28/72+35/75