Add 28/15 and 10/72
1st number: 1 13/15, 2nd number: 10/72
28/15 + 10/72 is 361/180.
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,
28/15 = 28 × 24/15 × 24 = 672/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
10/72 = 10 × 5/72 × 5 = 50/360 - Add the two like fractions:
672/360 + 50/360 = 672 + 50/360 = 722/360 - 722/360 simplified gives 361/180
- So, 28/15 + 10/72 = 361/180
In mixed form: 21/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/15+10/72 28/15+20/72 28/30+10/72 84/15+10/72 28/15+30/72 28/45+10/72 28/15+50/72 28/75+10/72 28/15+70/72