Add 21/24 and 42/5
1st number: 21/24, 2nd number: 8 2/5
21/24 + 42/5 is 371/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 5 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Likewise, for the 2nd fraction, since 5 × 24 = 120,
42/5 = 42 × 24/5 × 24 = 1008/120 - Add the two like fractions:
105/120 + 1008/120 = 105 + 1008/120 = 1113/120 - 1113/120 simplified gives 371/40
- So, 21/24 + 42/5 = 371/40
In mixed form: 911/40
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