Add 15/54 and 25/21
1st number: 15/54, 2nd number: 1 4/21
15/54 + 25/21 is 185/126.
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,
15/54 = 15 × 7/54 × 7 = 105/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
25/21 = 25 × 18/21 × 18 = 450/378 - Add the two like fractions:
105/378 + 450/378 = 105 + 450/378 = 555/378 - 555/378 simplified gives 185/126
- So, 15/54 + 25/21 = 185/126
In mixed form: 159/126
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