Add 12/5 and 21/27
1st number: 2 2/5, 2nd number: 21/27
12/5 + 21/27 is 143/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 5 × 27 = 135,
12/5 = 12 × 27/5 × 27 = 324/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
21/27 = 21 × 5/27 × 5 = 105/135 - Add the two like fractions:
324/135 + 105/135 = 324 + 105/135 = 429/135 - 429/135 simplified gives 143/45
- So, 12/5 + 21/27 = 143/45
In mixed form: 38/45
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