Add 30/40 and 63/5
1st number: 30/40, 2nd number: 12 3/5
30/40 + 63/5 is 267/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 5 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
30/40 = 30 × 1/40 × 1 = 30/40 - Likewise, for the 2nd fraction, since 5 × 8 = 40,
63/5 = 63 × 8/5 × 8 = 504/40 - Add the two like fractions:
30/40 + 504/40 = 30 + 504/40 = 534/40 - 534/40 simplified gives 267/20
- So, 30/40 + 63/5 = 267/20
In mixed form: 137/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40+63/5 30/80+63/5 30/40+63/10 90/40+63/5 30/40+63/15 30/40+63/25 30/40+63/35