Add 27/72 and 5/90
27/72 + 5/90 is 31/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 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 90 × 4 = 360,
5/90 = 5 × 4/90 × 4 = 20/360 - Add the two like fractions:
135/360 + 20/360 = 135 + 20/360 = 155/360 - 155/360 simplified gives 31/72
- So, 27/72 + 5/90 = 31/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/72+5/90 27/72+10/90 81/72+5/90 27/72+15/90 27/72+25/90 27/72+35/90