Add 21/98 and 8/4
1st number: 21/98, 2nd number: 2 0/4
21/98 + 8/4 is 31/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 4 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 98 × 2 = 196,
21/98 = 21 × 2/98 × 2 = 42/196 - Likewise, for the 2nd fraction, since 4 × 49 = 196,
8/4 = 8 × 49/4 × 49 = 392/196 - Add the two like fractions:
42/196 + 392/196 = 42 + 392/196 = 434/196 - 434/196 simplified gives 31/14
- So, 21/98 + 8/4 = 31/14
In mixed form: 23/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98+8/4 21/98+16/4 63/98+8/4 21/98+24/4 21/98+8/12 21/98+40/4 21/98+8/20 21/98+56/4 21/98+8/28