Add 81/40 and 20/12
1st number: 2 1/40, 2nd number: 1 8/12
81/40 + 20/12 is 443/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 12 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
81/40 = 81 × 3/40 × 3 = 243/120 - Likewise, for the 2nd fraction, since 12 × 10 = 120,
20/12 = 20 × 10/12 × 10 = 200/120 - Add the two like fractions:
243/120 + 200/120 = 243 + 200/120 = 443/120 - So, 81/40 + 20/12 = 443/120
In mixed form: 383/120
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