Add 21/49 and 84/45
1st number: 21/49, 2nd number: 1 39/45
21/49 + 84/45 is 241/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
21/49 = 21 × 45/49 × 45 = 945/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
84/45 = 84 × 49/45 × 49 = 4116/2205 - Add the two like fractions:
945/2205 + 4116/2205 = 945 + 4116/2205 = 5061/2205 - 5061/2205 simplified gives 241/105
- So, 21/49 + 84/45 = 241/105
In mixed form: 231/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/49+84/45 21/98+84/45 21/49+84/90 63/49+84/45