Add 45/4 and 81/10
1st number: 11 1/4, 2nd number: 8 1/10
45/4 + 81/10 is 387/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
45/4 = 45 × 5/4 × 5 = 225/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
81/10 = 81 × 2/10 × 2 = 162/20 - Add the two like fractions:
225/20 + 162/20 = 225 + 162/20 = 387/20 - So, 45/4 + 81/10 = 387/20
In mixed form: 197/20
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