Add 72/12 and 54/8
1st number: 6 0/12, 2nd number: 6 6/8
72/12 + 54/8 is 51/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
72/12 = 72 × 2/12 × 2 = 144/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
54/8 = 54 × 3/8 × 3 = 162/24 - Add the two like fractions:
144/24 + 162/24 = 144 + 162/24 = 306/24 - 306/24 simplified gives 51/4
- So, 72/12 + 54/8 = 51/4
In mixed form: 123/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/24+54/8 72/12+54/16 72/36+54/8 72/12+54/24 72/60+54/8 72/12+54/40 72/84+54/8 72/12+54/56