Add 84/24 and 90/45
1st number: 3 12/24, 2nd number: 2 0/45
84/24 + 90/45 is 11/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 24 × 15 = 360,
84/24 = 84 × 15/24 × 15 = 1260/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
90/45 = 90 × 8/45 × 8 = 720/360 - Add the two like fractions:
1260/360 + 720/360 = 1260 + 720/360 = 1980/360 - 1980/360 simplified gives 11/2
- So, 84/24 + 90/45 = 11/2
In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/48+90/45 84/72+90/45