Add 45/49 and 63/70
45/49 + 63/70 is 891/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
45/49 = 45 × 10/49 × 10 = 450/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
63/70 = 63 × 7/70 × 7 = 441/490 - Add the two like fractions:
450/490 + 441/490 = 450 + 441/490 = 891/490 - So, 45/49 + 63/70 = 891/490
In mixed form: 1401/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49+63/70 45/98+63/70