Add 21/6 and 54/42
1st number: 3 3/6, 2nd number: 1 12/42
21/6 + 54/42 is 67/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
54/42 = 54 × 1/42 × 1 = 54/42 - Add the two like fractions:
147/42 + 54/42 = 147 + 54/42 = 201/42 - 201/42 simplified gives 67/14
- So, 21/6 + 54/42 = 67/14
In mixed form: 411/14
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