Add 18/84 and 40/12
1st number: 18/84, 2nd number: 3 4/12
18/84 + 40/12 is 149/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
18/84 = 18 × 1/84 × 1 = 18/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
40/12 = 40 × 7/12 × 7 = 280/84 - Add the two like fractions:
18/84 + 280/84 = 18 + 280/84 = 298/84 - 298/84 simplified gives 149/42
- So, 18/84 + 40/12 = 149/42
In mixed form: 323/42
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