Add 5/42 and 30/21
1st number: 5/42, 2nd number: 1 9/21
5/42 + 30/21 is 65/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
5/42 = 5 × 1/42 × 1 = 5/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
30/21 = 30 × 2/21 × 2 = 60/42 - Add the two like fractions:
5/42 + 60/42 = 5 + 60/42 = 65/42 - So, 5/42 + 30/21 = 65/42
In mixed form: 123/42
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