Add 84/4 and 16/21
1st number: 21 0/4, 2nd number: 16/21
84/4 + 16/21 is 457/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
84/4 = 84 × 21/4 × 21 = 1764/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
16/21 = 16 × 4/21 × 4 = 64/84 - Add the two like fractions:
1764/84 + 64/84 = 1764 + 64/84 = 1828/84 - 1828/84 simplified gives 457/21
- So, 84/4 + 16/21 = 457/21
In mixed form: 2116/21
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