Add 15/24 and 21/15
1st number: 15/24, 2nd number: 1 6/15
15/24 + 21/15 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
15/24 = 15 × 5/24 × 5 = 75/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
21/15 = 21 × 8/15 × 8 = 168/120 - Add the two like fractions:
75/120 + 168/120 = 75 + 168/120 = 243/120 - 243/120 simplified gives 81/40
- So, 15/24 + 21/15 = 81/40
In mixed form: 21/40
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