Add 56/35 and 12/20
1st number: 1 21/35, 2nd number: 12/20
56/35 + 12/20 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 35 × 4 = 140,
56/35 = 56 × 4/35 × 4 = 224/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
224/140 + 84/140 = 224 + 84/140 = 308/140 - 308/140 simplified gives 11/5
- So, 56/35 + 12/20 = 11/5
In mixed form: 21/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/35+24/20 56/70+12/20 56/35+12/40 56/35+36/20 56/35+12/60 56/35+60/20 56/35+84/20