Add 15/4 and 20/63
1st number: 3 3/4, 2nd number: 20/63
15/4 + 20/63 is 1025/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
15/4 = 15 × 63/4 × 63 = 945/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Add the two like fractions:
945/252 + 80/252 = 945 + 80/252 = 1025/252 - So, 15/4 + 20/63 = 1025/252
In mixed form: 417/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4+20/63 15/4+40/63 15/8+20/63 45/4+20/63 15/4+60/63 15/12+20/63 75/4+20/63 15/20+20/63 15/28+20/63