Add 56/12 and 12/20
1st number: 4 8/12, 2nd number: 12/20
56/12 + 12/20 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
56/12 = 56 × 5/12 × 5 = 280/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60 - Add the two like fractions:
280/60 + 36/60 = 280 + 36/60 = 316/60 - 316/60 simplified gives 79/15
- So, 56/12 + 12/20 = 79/15
In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+24/20 56/24+12/20 56/12+12/40 56/12+36/20 56/36+12/20 56/12+12/60 56/12+60/20 56/60+12/20 56/12+84/20 56/84+12/20