Add 18/27 and 21/49
18/27 + 21/49 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 49 is 1323
Next, find the equivalent fraction of both fractional numbers with denominator 1323 - For the 1st fraction, since 27 × 49 = 1323,
18/27 = 18 × 49/27 × 49 = 882/1323 - Likewise, for the 2nd fraction, since 49 × 27 = 1323,
21/49 = 21 × 27/49 × 27 = 567/1323 - Add the two like fractions:
882/1323 + 567/1323 = 882 + 567/1323 = 1449/1323 - 1449/1323 simplified gives 23/21
- So, 18/27 + 21/49 = 23/21
In mixed form: 12/21
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