Add 27/72 and 9/15
27/72 + 9/15 is 39/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
9/15 = 9 × 24/15 × 24 = 216/360 - Add the two like fractions:
135/360 + 216/360 = 135 + 216/360 = 351/360 - 351/360 simplified gives 39/40
- So, 27/72 + 9/15 = 39/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+9/15 27/72+18/15 27/72+9/30 81/72+9/15 27/72+27/15 27/72+9/45 27/72+45/15 27/72+9/75 27/72+63/15