Add 63/40 and 9/70
1st number: 1 23/40, 2nd number: 9/70
63/40 + 9/70 is 477/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
63/40 = 63 × 7/40 × 7 = 441/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
9/70 = 9 × 4/70 × 4 = 36/280 - Add the two like fractions:
441/280 + 36/280 = 441 + 36/280 = 477/280 - So, 63/40 + 9/70 = 477/280
In mixed form: 1197/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/40+18/70 63/80+9/70 63/40+27/70 63/40+45/70 63/40+63/70