Add 42/2 and 21/12
1st number: 21 0/2, 2nd number: 1 9/12
42/2 + 21/12 is 91/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
42/2 = 42 × 6/2 × 6 = 252/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Add the two like fractions:
252/12 + 21/12 = 252 + 21/12 = 273/12 - 273/12 simplified gives 91/4
- So, 42/2 + 21/12 = 91/4
In mixed form: 223/4
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