Add 1/54 and 25/21
1st number: 1/54, 2nd number: 1 4/21
1/54 + 25/21 is 457/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
1/54 = 1 × 7/54 × 7 = 7/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
25/21 = 25 × 18/21 × 18 = 450/378 - Add the two like fractions:
7/378 + 450/378 = 7 + 450/378 = 457/378 - So, 1/54 + 25/21 = 457/378
In mixed form: 179/378
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