Add 90/81 and 42/35
1st number: 1 9/81, 2nd number: 1 7/35
90/81 + 42/35 is 104/45.
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,
90/81 = 90 × 35/81 × 35 = 3150/2835 - Likewise, for the 2nd fraction, since 35 × 81 = 2835,
42/35 = 42 × 81/35 × 81 = 3402/2835 - Add the two like fractions:
3150/2835 + 3402/2835 = 3150 + 3402/2835 = 6552/2835 - 6552/2835 simplified gives 104/45
- So, 90/81 + 42/35 = 104/45
In mixed form: 214/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/81+84/35 90/81+42/70