Add 21/54 and 54/56
21/54 + 54/56 is 341/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 56 is 1512
Next, find the equivalent fraction of both fractional numbers with denominator 1512 - For the 1st fraction, since 54 × 28 = 1512,
21/54 = 21 × 28/54 × 28 = 588/1512 - Likewise, for the 2nd fraction, since 56 × 27 = 1512,
54/56 = 54 × 27/56 × 27 = 1458/1512 - Add the two like fractions:
588/1512 + 1458/1512 = 588 + 1458/1512 = 2046/1512 - 2046/1512 simplified gives 341/252
- So, 21/54 + 54/56 = 341/252
In mixed form: 189/252
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