Add 21/4 and 81/14
1st number: 5 1/4, 2nd number: 5 11/14
21/4 + 81/14 is 309/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 14 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
21/4 = 21 × 7/4 × 7 = 147/28 - Likewise, for the 2nd fraction, since 14 × 2 = 28,
81/14 = 81 × 2/14 × 2 = 162/28 - Add the two like fractions:
147/28 + 162/28 = 147 + 162/28 = 309/28 - So, 21/4 + 81/14 = 309/28
In mixed form: 111/28
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