Add 15/98 and 21/63
15/98 + 21/63 is 143/294.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 63 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
15/98 = 15 × 9/98 × 9 = 135/882 - Likewise, for the 2nd fraction, since 63 × 14 = 882,
21/63 = 21 × 14/63 × 14 = 294/882 - Add the two like fractions:
135/882 + 294/882 = 135 + 294/882 = 429/882 - 429/882 simplified gives 143/294
- So, 15/98 + 21/63 = 143/294
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/98+21/63 15/98+42/63 45/98+21/63 75/98+21/63