Add 30/8 and 63/20
1st number: 3 6/8, 2nd number: 3 3/20
30/8 + 63/20 is 69/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
30/8 = 30 × 5/8 × 5 = 150/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
63/20 = 63 × 2/20 × 2 = 126/40 - Add the two like fractions:
150/40 + 126/40 = 150 + 126/40 = 276/40 - 276/40 simplified gives 69/10
- So, 30/8 + 63/20 = 69/10
In mixed form: 69/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+63/20 30/16+63/20 30/8+63/40 90/8+63/20 30/24+63/20 30/8+63/60 30/40+63/20 30/56+63/20