Add 84/45 and 90/30
1st number: 1 39/45, 2nd number: 3 0/30
84/45 + 90/30 is 73/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
90/30 = 90 × 3/30 × 3 = 270/90 - Add the two like fractions:
168/90 + 270/90 = 168 + 270/90 = 438/90 - 438/90 simplified gives 73/15
- So, 84/45 + 90/30 = 73/15
In mixed form: 413/15
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 84/45+90/60