Add 28/27 and 45/72
1st number: 1 1/27, 2nd number: 45/72
28/27 + 45/72 is 359/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 72 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
28/27 = 28 × 8/27 × 8 = 224/216 - Likewise, for the 2nd fraction, since 72 × 3 = 216,
45/72 = 45 × 3/72 × 3 = 135/216 - Add the two like fractions:
224/216 + 135/216 = 224 + 135/216 = 359/216 - So, 28/27 + 45/72 = 359/216
In mixed form: 1143/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27+45/72 28/27+90/72 28/54+45/72 84/27+45/72 28/81+45/72