Add 90/12 and 45/24
1st number: 7 6/12, 2nd number: 1 21/24
90/12 + 45/24 is 75/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
90/12 = 90 × 2/12 × 2 = 180/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
45/24 = 45 × 1/24 × 1 = 45/24 - Add the two like fractions:
180/24 + 45/24 = 180 + 45/24 = 225/24 - 225/24 simplified gives 75/8
- So, 90/12 + 45/24 = 75/8
In mixed form: 93/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/12+90/24 90/24+45/24 90/12+45/48 90/36+45/24 90/12+45/72 90/60+45/24 90/84+45/24