Add 42/24 and 18/9
1st number: 1 18/24, 2nd number: 2 0/9
42/24 + 18/9 is 15/4.
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,
42/24 = 42 × 3/24 × 3 = 126/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
18/9 = 18 × 8/9 × 8 = 144/72 - Add the two like fractions:
126/72 + 144/72 = 126 + 144/72 = 270/72 - 270/72 simplified gives 15/4
- So, 42/24 + 18/9 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/24+18/9 42/24+36/9 42/48+18/9 42/24+54/9 42/72+18/9 42/24+18/27 42/24+90/9 42/24+18/45 42/24+18/63