Add 81/98 and 63/8
1st number: 81/98, 2nd number: 7 7/8
81/98 + 63/8 is 3411/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
81/98 = 81 × 4/98 × 4 = 324/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
63/8 = 63 × 49/8 × 49 = 3087/392 - Add the two like fractions:
324/392 + 3087/392 = 324 + 3087/392 = 3411/392 - So, 81/98 + 63/8 = 3411/392
In mixed form: 8275/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/98+63/16 81/98+63/24 81/98+63/40 81/98+63/56