Add 21/10 and 9/98
1st number: 2 1/10, 2nd number: 9/98
21/10 + 9/98 is 537/245.
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,
21/10 = 21 × 49/10 × 49 = 1029/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
9/98 = 9 × 5/98 × 5 = 45/490 - Add the two like fractions:
1029/490 + 45/490 = 1029 + 45/490 = 1074/490 - 1074/490 simplified gives 537/245
- So, 21/10 + 9/98 = 537/245
In mixed form: 247/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/10+9/98 21/10+18/98 21/20+9/98 63/10+9/98 21/10+27/98 21/30+9/98 21/10+45/98 21/50+9/98 21/10+63/98 21/70+9/98