Add 20/12 and 42/27
1st number: 1 8/12, 2nd number: 1 15/27
20/12 + 42/27 is 29/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
20/12 = 20 × 9/12 × 9 = 180/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
42/27 = 42 × 4/27 × 4 = 168/108 - Add the two like fractions:
180/108 + 168/108 = 180 + 168/108 = 348/108 - 348/108 simplified gives 29/9
- So, 20/12 + 42/27 = 29/9
In mixed form: 32/9
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