Add 42/8 and 30/18
1st number: 5 2/8, 2nd number: 1 12/18
42/8 + 30/18 is 83/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
42/8 = 42 × 9/8 × 9 = 378/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
30/18 = 30 × 4/18 × 4 = 120/72 - Add the two like fractions:
378/72 + 120/72 = 378 + 120/72 = 498/72 - 498/72 simplified gives 83/12
- So, 42/8 + 30/18 = 83/12
In mixed form: 611/12
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