Add 18/27 and 90/35
1st number: 18/27, 2nd number: 2 20/35
18/27 + 90/35 is 68/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 35 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 27 × 35 = 945,
18/27 = 18 × 35/27 × 35 = 630/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
90/35 = 90 × 27/35 × 27 = 2430/945 - Add the two like fractions:
630/945 + 2430/945 = 630 + 2430/945 = 3060/945 - 3060/945 simplified gives 68/21
- So, 18/27 + 90/35 = 68/21
In mixed form: 35/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/27+90/35 18/54+90/35 18/27+90/70 54/27+90/35 18/81+90/35 90/27+90/35