Add 27/7 and 72/18
1st number: 3 6/7, 2nd number: 4 0/18
27/7 + 72/18 is 55/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
27/7 = 27 × 18/7 × 18 = 486/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Add the two like fractions:
486/126 + 504/126 = 486 + 504/126 = 990/126 - 990/126 simplified gives 55/7
- So, 27/7 + 72/18 = 55/7
In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+72/18 27/14+72/18 27/7+72/36 81/7+72/18 27/21+72/18 27/7+72/54 27/35+72/18 27/7+72/90 27/49+72/18