Add 72/27 and 18/30
1st number: 2 18/27, 2nd number: 18/30
72/27 + 18/30 is 49/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
72/27 = 72 × 10/27 × 10 = 720/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
18/30 = 18 × 9/30 × 9 = 162/270 - Add the two like fractions:
720/270 + 162/270 = 720 + 162/270 = 882/270 - 882/270 simplified gives 49/15
- So, 72/27 + 18/30 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/27+36/30 72/54+18/30 72/27+18/60 72/27+54/30 72/81+18/30 72/27+18/90 72/27+90/30