Add 81/20 and 7/5
1st number: 4 1/20, 2nd number: 1 2/5
81/20 + 7/5 is 109/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 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 5 × 4 = 20,
7/5 = 7 × 4/5 × 4 = 28/20 - Add the two like fractions:
81/20 + 28/20 = 81 + 28/20 = 109/20 - So, 81/20 + 7/5 = 109/20
In mixed form: 59/20
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