Add 20/84 and 21/16
1st number: 20/84, 2nd number: 1 5/16
20/84 + 21/16 is 521/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
20/84 = 20 × 4/84 × 4 = 80/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
21/16 = 21 × 21/16 × 21 = 441/336 - Add the two like fractions:
80/336 + 441/336 = 80 + 441/336 = 521/336 - So, 20/84 + 21/16 = 521/336
In mixed form: 1185/336
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