Add 84/18 and 7/12
1st number: 4 12/18, 2nd number: 7/12
84/18 + 7/12 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
7/12 = 7 × 3/12 × 3 = 21/36 - Add the two like fractions:
168/36 + 21/36 = 168 + 21/36 = 189/36 - 189/36 simplified gives 21/4
- So, 84/18 + 7/12 = 21/4
In mixed form: 51/4
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