Add 45/4 and 42/5
1st number: 11 1/4, 2nd number: 8 2/5
45/4 + 42/5 is 393/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 5 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 5 × 4 = 20,
42/5 = 42 × 4/5 × 4 = 168/20 - Add the two like fractions:
225/20 + 168/20 = 225 + 168/20 = 393/20 - So, 45/4 + 42/5 = 393/20
In mixed form: 1913/20
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