Add 21/25 and 15/12
1st number: 21/25, 2nd number: 1 3/12
21/25 + 15/12 is 209/100.
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,
15/12 = 15 × 25/12 × 25 = 375/300 - Add the two like fractions:
252/300 + 375/300 = 252 + 375/300 = 627/300 - 627/300 simplified gives 209/100
- So, 21/25 + 15/12 = 209/100
In mixed form: 29/100
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