Add 27/5 and 21/12
1st number: 5 2/5, 2nd number: 1 9/12
27/5 + 21/12 is 143/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
27/5 = 27 × 12/5 × 12 = 324/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
21/12 = 21 × 5/12 × 5 = 105/60 - Add the two like fractions:
324/60 + 105/60 = 324 + 105/60 = 429/60 - 429/60 simplified gives 143/20
- So, 27/5 + 21/12 = 143/20
In mixed form: 73/20
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