Add 28/72 and 12/54
28/72 + 12/54 is 11/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 72 × 3 = 216,
28/72 = 28 × 3/72 × 3 = 84/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
12/54 = 12 × 4/54 × 4 = 48/216 - Add the two like fractions:
84/216 + 48/216 = 84 + 48/216 = 132/216 - 132/216 simplified gives 11/18
- So, 28/72 + 12/54 = 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/72+12/54 28/72+24/54 84/72+12/54 28/72+36/54 28/72+60/54 28/72+84/54