Add 18/10 and 21/24
1st number: 1 8/10, 2nd number: 21/24
18/10 + 21/24 is 107/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 10 × 12 = 120,
18/10 = 18 × 12/10 × 12 = 216/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Add the two like fractions:
216/120 + 105/120 = 216 + 105/120 = 321/120 - 321/120 simplified gives 107/40
- So, 18/10 + 21/24 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10+21/24 18/10+42/24 18/20+21/24 18/10+21/48 54/10+21/24 18/10+63/24 18/30+21/24 18/10+21/72 90/10+21/24 18/50+21/24 18/70+21/24