Add 72/15 and 28/98
1st number: 4 12/15, 2nd number: 28/98
72/15 + 28/98 is 178/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 15 × 98 = 1470,
72/15 = 72 × 98/15 × 98 = 7056/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
28/98 = 28 × 15/98 × 15 = 420/1470 - Add the two like fractions:
7056/1470 + 420/1470 = 7056 + 420/1470 = 7476/1470 - 7476/1470 simplified gives 178/35
- So, 72/15 + 28/98 = 178/35
In mixed form: 53/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/15+56/98 72/30+28/98 72/15+84/98 72/45+28/98 72/75+28/98