Add 30/8 and 42/12
1st number: 3 6/8, 2nd number: 3 6/12
30/8 + 42/12 is 29/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
30/8 = 30 × 3/8 × 3 = 90/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
42/12 = 42 × 2/12 × 2 = 84/24 - Add the two like fractions:
90/24 + 84/24 = 90 + 84/24 = 174/24 - 174/24 simplified gives 29/4
- So, 30/8 + 42/12 = 29/4
In mixed form: 71/4
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