Add 56/35 and 63/12
1st number: 1 21/35, 2nd number: 5 3/12
56/35 + 63/12 is 137/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
56/35 = 56 × 12/35 × 12 = 672/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
63/12 = 63 × 35/12 × 35 = 2205/420 - Add the two like fractions:
672/420 + 2205/420 = 672 + 2205/420 = 2877/420 - 2877/420 simplified gives 137/20
- So, 56/35 + 63/12 = 137/20
In mixed form: 617/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70+63/12 56/35+63/24 56/35+63/36 56/35+63/60 56/35+63/84