Add 18/21 and 25/54
18/21 + 25/54 is 499/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
18/21 = 18 × 18/21 × 18 = 324/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
25/54 = 25 × 7/54 × 7 = 175/378 - Add the two like fractions:
324/378 + 175/378 = 324 + 175/378 = 499/378 - So, 18/21 + 25/54 = 499/378
In mixed form: 1121/378
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