Add 84/90 and 45/30
1st number: 84/90, 2nd number: 1 15/30
84/90 + 45/30 is 73/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
45/30 = 45 × 3/30 × 3 = 135/90 - Add the two like fractions:
84/90 + 135/90 = 84 + 135/90 = 219/90 - 219/90 simplified gives 73/30
- So, 84/90 + 45/30 = 73/30
In mixed form: 213/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+90/30 84/90+45/60 84/90+45/90