Add 30/10 and 21/98
1st number: 3 0/10, 2nd number: 21/98
30/10 + 21/98 is 45/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
30/10 = 30 × 49/10 × 49 = 1470/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Add the two like fractions:
1470/490 + 105/490 = 1470 + 105/490 = 1575/490 - 1575/490 simplified gives 45/14
- So, 30/10 + 21/98 = 45/14
In mixed form: 33/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/10+21/98 30/10+42/98 30/20+21/98 90/10+21/98 30/10+63/98 30/50+21/98 30/70+21/98