Add 63/8 and 64/20
1st number: 7 7/8, 2nd number: 3 4/20
63/8 + 64/20 is 443/40.
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,
63/8 = 63 × 5/8 × 5 = 315/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
64/20 = 64 × 2/20 × 2 = 128/40 - Add the two like fractions:
315/40 + 128/40 = 315 + 128/40 = 443/40 - So, 63/8 + 64/20 = 443/40
In mixed form: 113/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/16+64/20 63/8+64/40 63/24+64/20 63/8+64/60 63/40+64/20 63/56+64/20