Add 28/4 and 7/72
1st number: 7 0/4, 2nd number: 7/72
28/4 + 7/72 is 511/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
28/4 = 28 × 18/4 × 18 = 504/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
7/72 = 7 × 1/72 × 1 = 7/72 - Add the two like fractions:
504/72 + 7/72 = 504 + 7/72 = 511/72 - So, 28/4 + 7/72 = 511/72
In mixed form: 77/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/4+7/72 28/4+14/72 28/8+7/72 84/4+7/72 28/4+21/72 28/12+7/72 28/4+35/72 28/20+7/72 28/4+49/72