Add 28/54 and 12/72
28/54 + 12/72 is 37/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
28/54 = 28 × 4/54 × 4 = 112/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
12/72 = 12 × 3/72 × 3 = 36/216 - Add the two like fractions:
112/216 + 36/216 = 112 + 36/216 = 148/216 - 148/216 simplified gives 37/54
- So, 28/54 + 12/72 = 37/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54+12/72 28/54+24/72 84/54+12/72 28/54+36/72 28/54+60/72 28/54+84/72