Add 9/21 and 18/16
1st number: 9/21, 2nd number: 1 2/16
9/21 + 18/16 is 87/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
9/21 = 9 × 16/21 × 16 = 144/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
18/16 = 18 × 21/16 × 21 = 378/336 - Add the two like fractions:
144/336 + 378/336 = 144 + 378/336 = 522/336 - 522/336 simplified gives 87/56
- So, 9/21 + 18/16 = 87/56
In mixed form: 131/56
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