Add 27/30 and 1/18
27/30 + 1/18 is 43/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
27/30 = 27 × 3/30 × 3 = 81/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
1/18 = 1 × 5/18 × 5 = 5/90 - Add the two like fractions:
81/90 + 5/90 = 81 + 5/90 = 86/90 - 86/90 simplified gives 43/45
- So, 27/30 + 1/18 = 43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+1/18 27/30+2/18 27/60+1/18 27/30+1/36 81/30+1/18 27/30+3/18 27/90+1/18 27/30+1/54 27/30+5/18 27/30+1/90 27/30+7/18