Add 45/8 and 21/49
1st number: 5 5/8, 2nd number: 21/49
45/8 + 21/49 is 339/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 8 × 49 = 392,
45/8 = 45 × 49/8 × 49 = 2205/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
21/49 = 21 × 8/49 × 8 = 168/392 - Add the two like fractions:
2205/392 + 168/392 = 2205 + 168/392 = 2373/392 - 2373/392 simplified gives 339/56
- So, 45/8 + 21/49 = 339/56
In mixed form: 63/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/8+21/49 45/8+42/49 45/16+21/49 45/8+21/98 45/8+63/49 45/24+21/49 45/40+21/49 45/56+21/49