Add 42/24 and 81/15
1st number: 1 18/24, 2nd number: 5 6/15
42/24 + 81/15 is 143/20.
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,
42/24 = 42 × 5/24 × 5 = 210/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
81/15 = 81 × 8/15 × 8 = 648/120 - Add the two like fractions:
210/120 + 648/120 = 210 + 648/120 = 858/120 - 858/120 simplified gives 143/20
- So, 42/24 + 81/15 = 143/20
In mixed form: 73/20
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