Add 18/81 and 90/35
1st number: 18/81, 2nd number: 2 20/35
18/81 + 90/35 is 176/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 35 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 81 × 35 = 2835,
18/81 = 18 × 35/81 × 35 = 630/2835 - Likewise, for the 2nd fraction, since 35 × 81 = 2835,
90/35 = 90 × 81/35 × 81 = 7290/2835 - Add the two like fractions:
630/2835 + 7290/2835 = 630 + 7290/2835 = 7920/2835 - 7920/2835 simplified gives 176/63
- So, 18/81 + 90/35 = 176/63
In mixed form: 250/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/81+90/35 18/81+90/70 54/81+90/35 90/81+90/35