Add 81/20 and 30/4
1st number: 4 1/20, 2nd number: 7 2/4
81/20 + 30/4 is 231/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
30/4 = 30 × 5/4 × 5 = 150/20 - Add the two like fractions:
81/20 + 150/20 = 81 + 150/20 = 231/20 - So, 81/20 + 30/4 = 231/20
In mixed form: 1111/20
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