Add 84/10 and 21/24
1st number: 8 4/10, 2nd number: 21/24
84/10 + 21/24 is 371/40.
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,
84/10 = 84 × 12/10 × 12 = 1008/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Add the two like fractions:
1008/120 + 105/120 = 1008 + 105/120 = 1113/120 - 1113/120 simplified gives 371/40
- So, 84/10 + 21/24 = 371/40
In mixed form: 911/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+42/24 84/20+21/24 84/10+21/48 84/10+63/24 84/30+21/24 84/10+21/72 84/50+21/24 84/70+21/24