Add 18/15 and 30/98
1st number: 1 3/15, 2nd number: 30/98
18/15 + 30/98 is 369/245.
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,
18/15 = 18 × 98/15 × 98 = 1764/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
30/98 = 30 × 15/98 × 15 = 450/1470 - Add the two like fractions:
1764/1470 + 450/1470 = 1764 + 450/1470 = 2214/1470 - 2214/1470 simplified gives 369/245
- So, 18/15 + 30/98 = 369/245
In mixed form: 1124/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+30/98 18/15+60/98 18/30+30/98 54/15+30/98 18/15+90/98 18/45+30/98 90/15+30/98 18/75+30/98