Add 63/4 and 42/5
1st number: 15 3/4, 2nd number: 8 2/5
63/4 + 42/5 is 483/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
63/4 = 63 × 5/4 × 5 = 315/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
42/5 = 42 × 4/5 × 4 = 168/20 - Add the two like fractions:
315/20 + 168/20 = 315 + 168/20 = 483/20 - So, 63/4 + 42/5 = 483/20
In mixed form: 243/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4+84/5 63/8+42/5 63/4+42/10 63/12+42/5 63/4+42/15 63/20+42/5 63/4+42/25 63/28+42/5 63/4+42/35