Add 42/2 and 81/4
1st number: 21 0/2, 2nd number: 20 1/4
42/2 + 81/4 is 165/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 4 is 4
Next, find the equivalent fraction of both fractional numbers with denominator 4 - For the 1st fraction, since 2 × 2 = 4,
42/2 = 42 × 2/2 × 2 = 84/4 - Likewise, for the 2nd fraction, since 4 × 1 = 4,
81/4 = 81 × 1/4 × 1 = 81/4 - Add the two like fractions:
84/4 + 81/4 = 84 + 81/4 = 165/4 - So, 42/2 + 81/4 = 165/4
In mixed form: 411/4
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