Add 90/24 and 75/9
1st number: 3 18/24, 2nd number: 8 3/9
90/24 + 75/9 is 145/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
90/24 = 90 × 3/24 × 3 = 270/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
75/9 = 75 × 8/9 × 8 = 600/72 - Add the two like fractions:
270/72 + 600/72 = 270 + 600/72 = 870/72 - 870/72 simplified gives 145/12
- So, 90/24 + 75/9 = 145/12
In mixed form: 121/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+75/9 90/24+75/18 90/72+75/9 90/24+75/27 90/24+75/45 90/24+75/63