Add 84/4 and 21/54
1st number: 21 0/4, 2nd number: 21/54
84/4 + 21/54 is 385/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
84/4 = 84 × 27/4 × 27 = 2268/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
21/54 = 21 × 2/54 × 2 = 42/108 - Add the two like fractions:
2268/108 + 42/108 = 2268 + 42/108 = 2310/108 - 2310/108 simplified gives 385/18
- So, 84/4 + 21/54 = 385/18
In mixed form: 217/18
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