Add 84/4 and 21/16
1st number: 21 0/4, 2nd number: 1 5/16
84/4 + 21/16 is 357/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 4 × 4 = 16,
84/4 = 84 × 4/4 × 4 = 336/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
21/16 = 21 × 1/16 × 1 = 21/16 - Add the two like fractions:
336/16 + 21/16 = 336 + 21/16 = 357/16 - So, 84/4 + 21/16 = 357/16
In mixed form: 225/16
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