Add 28/12 and 75/72
1st number: 2 4/12, 2nd number: 1 3/72
28/12 + 75/72 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
28/12 = 28 × 6/12 × 6 = 168/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
75/72 = 75 × 1/72 × 1 = 75/72 - Add the two like fractions:
168/72 + 75/72 = 168 + 75/72 = 243/72 - 243/72 simplified gives 27/8
- So, 28/12 + 75/72 = 27/8
In mixed form: 33/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12+75/72 28/24+75/72 84/12+75/72 28/36+75/72 28/60+75/72 28/84+75/72