Add 21/98 and 20/5
1st number: 21/98, 2nd number: 4 0/5
21/98 + 20/5 is 59/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Likewise, for the 2nd fraction, since 5 × 98 = 490,
20/5 = 20 × 98/5 × 98 = 1960/490 - Add the two like fractions:
105/490 + 1960/490 = 105 + 1960/490 = 2065/490 - 2065/490 simplified gives 59/14
- So, 21/98 + 20/5 = 59/14
In mixed form: 43/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/98+20/5 21/98+40/5 21/98+20/10 63/98+20/5 21/98+60/5 21/98+20/15 21/98+20/25 21/98+20/35