Add 18/12 and 5/42
1st number: 1 6/12, 2nd number: 5/42
18/12 + 5/42 is 34/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
5/42 = 5 × 2/42 × 2 = 10/84 - Add the two like fractions:
126/84 + 10/84 = 126 + 10/84 = 136/84 - 136/84 simplified gives 34/21
- So, 18/12 + 5/42 = 34/21
In mixed form: 113/21
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