Add 20/35 and 56/12
1st number: 20/35, 2nd number: 4 8/12
20/35 + 56/12 is 110/21.
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,
20/35 = 20 × 12/35 × 12 = 240/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
56/12 = 56 × 35/12 × 35 = 1960/420 - Add the two like fractions:
240/420 + 1960/420 = 240 + 1960/420 = 2200/420 - 2200/420 simplified gives 110/21
- So, 20/35 + 56/12 = 110/21
In mixed form: 55/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/35+56/12 20/70+56/12 20/35+56/24 60/35+56/12 20/35+56/36 20/35+56/60 20/35+56/84