Add 30/42 and 18/12
1st number: 30/42, 2nd number: 1 6/12
30/42 + 18/12 is 31/14.
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,
30/42 = 30 × 2/42 × 2 = 60/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84 - Add the two like fractions:
60/84 + 126/84 = 60 + 126/84 = 186/84 - 186/84 simplified gives 31/14
- So, 30/42 + 18/12 = 31/14
In mixed form: 23/14
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