Add 21/25 and 8/18
21/25 + 8/18 is 289/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
21/25 = 21 × 18/25 × 18 = 378/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
8/18 = 8 × 25/18 × 25 = 200/450 - Add the two like fractions:
378/450 + 200/450 = 378 + 200/450 = 578/450 - 578/450 simplified gives 289/225
- So, 21/25 + 8/18 = 289/225
In mixed form: 164/225
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