Add 21/24 and 45/20
1st number: 21/24, 2nd number: 2 5/20
21/24 + 45/20 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 20 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 24 × 5 = 120,
21/24 = 21 × 5/24 × 5 = 105/120 - Likewise, for the 2nd fraction, since 20 × 6 = 120,
45/20 = 45 × 6/20 × 6 = 270/120 - Add the two like fractions:
105/120 + 270/120 = 105 + 270/120 = 375/120 - 375/120 simplified gives 25/8
- So, 21/24 + 45/20 = 25/8
In mixed form: 31/8
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