Add 81/12 and 4/40
1st number: 6 9/12, 2nd number: 4/40
81/12 + 4/40 is 137/20.
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,
4/40 = 4 × 3/40 × 3 = 12/120 - Add the two like fractions:
810/120 + 12/120 = 810 + 12/120 = 822/120 - 822/120 simplified gives 137/20
- So, 81/12 + 4/40 = 137/20
In mixed form: 617/20
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