Add 45/12 and 21/25
1st number: 3 9/12, 2nd number: 21/25
45/12 + 21/25 is 459/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
45/12 = 45 × 25/12 × 25 = 1125/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
21/25 = 21 × 12/25 × 12 = 252/300 - Add the two like fractions:
1125/300 + 252/300 = 1125 + 252/300 = 1377/300 - 1377/300 simplified gives 459/100
- So, 45/12 + 21/25 = 459/100
In mixed form: 459/100
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