Add 30/40 and 63/49
1st number: 30/40, 2nd number: 1 14/49
30/40 + 63/49 is 57/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
30/40 = 30 × 49/40 × 49 = 1470/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
63/49 = 63 × 40/49 × 40 = 2520/1960 - Add the two like fractions:
1470/1960 + 2520/1960 = 1470 + 2520/1960 = 3990/1960 - 3990/1960 simplified gives 57/28
- So, 30/40 + 63/49 = 57/28
In mixed form: 21/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+63/49 30/80+63/49 30/40+63/98 90/40+63/49