Add 21/2 and 21/36
1st number: 10 1/2, 2nd number: 21/36
21/2 + 21/36 is 133/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 2 × 18 = 36,
21/2 = 21 × 18/2 × 18 = 378/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Add the two like fractions:
378/36 + 21/36 = 378 + 21/36 = 399/36 - 399/36 simplified gives 133/12
- So, 21/2 + 21/36 = 133/12
In mixed form: 111/12
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