Add 12/98 and 21/10
1st number: 12/98, 2nd number: 2 1/10
12/98 + 21/10 is 1089/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
12/98 = 12 × 5/98 × 5 = 60/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
21/10 = 21 × 49/10 × 49 = 1029/490 - Add the two like fractions:
60/490 + 1029/490 = 60 + 1029/490 = 1089/490 - So, 12/98 + 21/10 = 1089/490
In mixed form: 2109/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/98+21/10 12/98+42/10 12/98+21/20 36/98+21/10 12/98+63/10 12/98+21/30 60/98+21/10 12/98+21/50 84/98+21/10 12/98+21/70