Add 21/2 and 81/16
1st number: 10 1/2, 2nd number: 5 1/16
21/2 + 81/16 is 249/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 2 × 8 = 16,
21/2 = 21 × 8/2 × 8 = 168/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
81/16 = 81 × 1/16 × 1 = 81/16 - Add the two like fractions:
168/16 + 81/16 = 168 + 81/16 = 249/16 - So, 21/2 + 81/16 = 249/16
In mixed form: 159/16
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