Add 21/98 and 5/7
21/98 + 5/7 is 13/14.
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,
5/7 = 5 × 14/7 × 14 = 70/98 - Add the two like fractions:
21/98 + 70/98 = 21 + 70/98 = 91/98 - 91/98 simplified gives 13/14
- So, 21/98 + 5/7 = 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98+5/7 21/98+10/7 21/98+5/14 63/98+5/7 21/98+15/7 21/98+5/21 21/98+25/7 21/98+5/35 21/98+35/7 21/98+5/49