Add 81/20 and 72/5
1st number: 4 1/20, 2nd number: 14 2/5
81/20 + 72/5 is 369/20.
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,
72/5 = 72 × 4/5 × 4 = 288/20 - Add the two like fractions:
81/20 + 288/20 = 81 + 288/20 = 369/20 - So, 81/20 + 72/5 = 369/20
In mixed form: 189/20
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