Add 20/36 and 21/12
1st number: 20/36, 2nd number: 1 9/12
20/36 + 21/12 is 83/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
20/36 = 20 × 1/36 × 1 = 20/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
21/12 = 21 × 3/12 × 3 = 63/36 - Add the two like fractions:
20/36 + 63/36 = 20 + 63/36 = 83/36 - So, 20/36 + 21/12 = 83/36
In mixed form: 211/36
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