Add 42/15 and 81/24
1st number: 2 12/15, 2nd number: 3 9/24
42/15 + 81/24 is 247/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
42/15 = 42 × 8/15 × 8 = 336/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
81/24 = 81 × 5/24 × 5 = 405/120 - Add the two like fractions:
336/120 + 405/120 = 336 + 405/120 = 741/120 - 741/120 simplified gives 247/40
- So, 42/15 + 81/24 = 247/40
In mixed form: 67/40
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