Add 54/14 and 5/21
1st number: 3 12/14, 2nd number: 5/21
54/14 + 5/21 is 86/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
54/14 = 54 × 3/14 × 3 = 162/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
5/21 = 5 × 2/21 × 2 = 10/42 - Add the two like fractions:
162/42 + 10/42 = 162 + 10/42 = 172/42 - 172/42 simplified gives 86/21
- So, 54/14 + 5/21 = 86/21
In mixed form: 42/21
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