Add 81/30 and 18/24
1st number: 2 21/30, 2nd number: 18/24
81/30 + 18/24 is 69/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
81/30 = 81 × 4/30 × 4 = 324/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
18/24 = 18 × 5/24 × 5 = 90/120 - Add the two like fractions:
324/120 + 90/120 = 324 + 90/120 = 414/120 - 414/120 simplified gives 69/20
- So, 81/30 + 18/24 = 69/20
In mixed form: 39/20
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