Add 27/36 and 84/21
1st number: 27/36, 2nd number: 4 0/21
27/36 + 84/21 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
27/36 = 27 × 7/36 × 7 = 189/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
84/21 = 84 × 12/21 × 12 = 1008/252 - Add the two like fractions:
189/252 + 1008/252 = 189 + 1008/252 = 1197/252 - 1197/252 simplified gives 19/4
- So, 27/36 + 84/21 = 19/4
In mixed form: 43/4
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