Add 21/84 and 9/16
21/84 + 9/16 is 13/16.
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,
21/84 = 21 × 4/84 × 4 = 84/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
9/16 = 9 × 21/16 × 21 = 189/336 - Add the two like fractions:
84/336 + 189/336 = 84 + 189/336 = 273/336 - 273/336 simplified gives 13/16
- So, 21/84 + 9/16 = 13/16
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