Add 56/63 and 45/12
1st number: 56/63, 2nd number: 3 9/12
56/63 + 45/12 is 167/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
56/63 = 56 × 4/63 × 4 = 224/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
45/12 = 45 × 21/12 × 21 = 945/252 - Add the two like fractions:
224/252 + 945/252 = 224 + 945/252 = 1169/252 - 1169/252 simplified gives 167/36
- So, 56/63 + 45/12 = 167/36
In mixed form: 423/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/63+90/12 56/63+45/24 56/63+45/36 56/63+45/60 56/63+45/84