Add 30/81 and 90/4
1st number: 30/81, 2nd number: 22 2/4
30/81 + 90/4 is 1235/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
90/4 = 90 × 81/4 × 81 = 7290/324 - Add the two like fractions:
120/324 + 7290/324 = 120 + 7290/324 = 7410/324 - 7410/324 simplified gives 1235/54
- So, 30/81 + 90/4 = 1235/54
In mixed form: 2247/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/81+90/4 30/81+90/8 90/81+90/4 30/81+90/12 30/81+90/20 30/81+90/28