Add 9/12 and 64/63
1st number: 9/12, 2nd number: 1 1/63
9/12 + 64/63 is 445/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
9/12 = 9 × 21/12 × 21 = 189/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
64/63 = 64 × 4/63 × 4 = 256/252 - Add the two like fractions:
189/252 + 256/252 = 189 + 256/252 = 445/252 - So, 9/12 + 64/63 = 445/252
In mixed form: 1193/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+64/63 9/24+64/63 27/12+64/63 9/36+64/63 45/12+64/63 9/60+64/63 63/12+64/63 9/84+64/63