Add 21/18 and 27/28
1st number: 1 3/18, 2nd number: 27/28
21/18 + 27/28 is 179/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
27/28 = 27 × 9/28 × 9 = 243/252 - Add the two like fractions:
294/252 + 243/252 = 294 + 243/252 = 537/252 - 537/252 simplified gives 179/84
- So, 21/18 + 27/28 = 179/84
In mixed form: 211/84
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