Add 42/7 and 30/18
1st number: 6 0/7, 2nd number: 1 12/18
42/7 + 30/18 is 23/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
42/7 = 42 × 18/7 × 18 = 756/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
30/18 = 30 × 7/18 × 7 = 210/126 - Add the two like fractions:
756/126 + 210/126 = 756 + 210/126 = 966/126 - 966/126 simplified gives 23/3
- So, 42/7 + 30/18 = 23/3
In mixed form: 72/3
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