Add 84/18 and 7/4
1st number: 4 12/18, 2nd number: 1 3/4
84/18 + 7/4 is 77/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 4 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 4 × 9 = 36,
7/4 = 7 × 9/4 × 9 = 63/36 - Add the two like fractions:
168/36 + 63/36 = 168 + 63/36 = 231/36 - 231/36 simplified gives 77/12
- So, 84/18 + 7/4 = 77/12
In mixed form: 65/12
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