Add 12/45 and 56/12
1st number: 12/45, 2nd number: 4 8/12
12/45 + 56/12 is 74/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
12/45 = 12 × 4/45 × 4 = 48/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
56/12 = 56 × 15/12 × 15 = 840/180 - Add the two like fractions:
48/180 + 840/180 = 48 + 840/180 = 888/180 - 888/180 simplified gives 74/15
- So, 12/45 + 56/12 = 74/15
In mixed form: 414/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+56/12 12/90+56/12 12/45+56/24 36/45+56/12 12/45+56/36 60/45+56/12 12/45+56/60 84/45+56/12 12/45+56/84