Add 81/12 and 3/40
1st number: 6 9/12, 2nd number: 3/40
81/12 + 3/40 is 273/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
81/12 = 81 × 10/12 × 10 = 810/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Add the two like fractions:
810/120 + 9/120 = 810 + 9/120 = 819/120 - 819/120 simplified gives 273/40
- So, 81/12 + 3/40 = 273/40
In mixed form: 633/40
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