Add 2/7 and 63/40
1st number: 2/7, 2nd number: 1 23/40
2/7 + 63/40 is 521/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
2/7 = 2 × 40/7 × 40 = 80/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
63/40 = 63 × 7/40 × 7 = 441/280 - Add the two like fractions:
80/280 + 441/280 = 80 + 441/280 = 521/280 - So, 2/7 + 63/40 = 521/280
In mixed form: 1241/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/7+63/40 2/14+63/40 2/7+63/80 6/7+63/40 2/21+63/40 10/7+63/40 2/35+63/40 14/7+63/40 2/49+63/40