Add 8/18 and 21/16
1st number: 8/18, 2nd number: 1 5/16
8/18 + 21/16 is 253/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
8/18 = 8 × 8/18 × 8 = 64/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Add the two like fractions:
64/144 + 189/144 = 64 + 189/144 = 253/144 - So, 8/18 + 21/16 = 253/144
In mixed form: 1109/144
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