Add 28/8 and 63/40
1st number: 3 4/8, 2nd number: 1 23/40
28/8 + 63/40 is 203/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
28/8 = 28 × 5/8 × 5 = 140/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
63/40 = 63 × 1/40 × 1 = 63/40 - Add the two like fractions:
140/40 + 63/40 = 140 + 63/40 = 203/40 - So, 28/8 + 63/40 = 203/40
In mixed form: 53/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+63/40 28/16+63/40 28/8+63/80 84/8+63/40 28/24+63/40 28/40+63/40 28/56+63/40