Add 21/25 and 63/18
1st number: 21/25, 2nd number: 3 9/18
21/25 + 63/18 is 217/50.
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,
63/18 = 63 × 25/18 × 25 = 1575/450 - Add the two like fractions:
378/450 + 1575/450 = 378 + 1575/450 = 1953/450 - 1953/450 simplified gives 217/50
- So, 21/25 + 63/18 = 217/50
In mixed form: 417/50
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