Add 72/56 and 18/12
1st number: 1 16/56, 2nd number: 1 6/12
72/56 + 18/12 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 12 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
72/56 = 72 × 3/56 × 3 = 216/168 - Likewise, for the 2nd fraction, since 12 × 14 = 168,
18/12 = 18 × 14/12 × 14 = 252/168 - Add the two like fractions:
216/168 + 252/168 = 216 + 252/168 = 468/168 - 468/168 simplified gives 39/14
- So, 72/56 + 18/12 = 39/14
In mixed form: 211/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56+36/12 72/56+18/24 72/56+54/12 72/56+18/36 72/56+90/12 72/56+18/60 72/56+18/84