Add 1/42 and 45/12
1st number: 1/42, 2nd number: 3 9/12
1/42 + 45/12 is 317/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
1/42 = 1 × 2/42 × 2 = 2/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
45/12 = 45 × 7/12 × 7 = 315/84 - Add the two like fractions:
2/84 + 315/84 = 2 + 315/84 = 317/84 - So, 1/42 + 45/12 = 317/84
In mixed form: 365/84
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