Add 3/12 and 54/56
3/12 + 54/56 is 17/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
3/12 = 3 × 14/12 × 14 = 42/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
54/56 = 54 × 3/56 × 3 = 162/168 - Add the two like fractions:
42/168 + 162/168 = 42 + 162/168 = 204/168 - 204/168 simplified gives 17/14
- So, 3/12 + 54/56 = 17/14
In mixed form: 13/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+54/56 3/24+54/56 9/12+54/56 3/36+54/56 15/12+54/56 3/60+54/56 21/12+54/56 3/84+54/56