Add 20/3 and 30/42
1st number: 6 2/3, 2nd number: 30/42
20/3 + 30/42 is 155/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
20/3 = 20 × 14/3 × 14 = 280/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
30/42 = 30 × 1/42 × 1 = 30/42 - Add the two like fractions:
280/42 + 30/42 = 280 + 30/42 = 310/42 - 310/42 simplified gives 155/21
- So, 20/3 + 30/42 = 155/21
In mixed form: 78/21
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