Add 21/98 and 40/7
1st number: 21/98, 2nd number: 5 5/7
21/98 + 40/7 is 83/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
21/98 = 21 × 1/98 × 1 = 21/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
40/7 = 40 × 14/7 × 14 = 560/98 - Add the two like fractions:
21/98 + 560/98 = 21 + 560/98 = 581/98 - 581/98 simplified gives 83/14
- So, 21/98 + 40/7 = 83/14
In mixed form: 513/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98+40/7 21/98+80/7 21/98+40/14 63/98+40/7 21/98+40/21 21/98+40/35 21/98+40/49