Add 27/21 and 30/42
1st number: 1 6/21, 2nd number: 30/42
27/21 + 30/42 is 2/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
27/21 = 27 × 2/21 × 2 = 54/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
30/42 = 30 × 1/42 × 1 = 30/42 - Add the two like fractions:
54/42 + 30/42 = 54 + 30/42 = 84/42 - 84/42 simplified gives 2/1
- So, 27/21 + 30/42 = 2/1
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