Add 81/4 and 15/18
1st number: 20 1/4, 2nd number: 15/18
81/4 + 15/18 is 253/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
81/4 = 81 × 9/4 × 9 = 729/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
15/18 = 15 × 2/18 × 2 = 30/36 - Add the two like fractions:
729/36 + 30/36 = 729 + 30/36 = 759/36 - 759/36 simplified gives 253/12
- So, 81/4 + 15/18 = 253/12
In mixed form: 211/12
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