Add 21/25 and 18/12
1st number: 21/25, 2nd number: 1 6/12
21/25 + 18/12 is 117/50.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
21/25 = 21 × 12/25 × 12 = 252/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300 - Add the two like fractions:
252/300 + 450/300 = 252 + 450/300 = 702/300 - 702/300 simplified gives 117/50
- So, 21/25 + 18/12 = 117/50
In mixed form: 217/50
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