Add 21/25 and 45/20
1st number: 21/25, 2nd number: 2 5/20
21/25 + 45/20 is 309/100.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
21/25 = 21 × 4/25 × 4 = 84/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
45/20 = 45 × 5/20 × 5 = 225/100 - Add the two like fractions:
84/100 + 225/100 = 84 + 225/100 = 309/100 - So, 21/25 + 45/20 = 309/100
In mixed form: 39/100
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