Add 12/3 and 15/20
1st number: 4 0/3, 2nd number: 15/20
12/3 + 15/20 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
12/3 = 12 × 20/3 × 20 = 240/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
15/20 = 15 × 3/20 × 3 = 45/60 - Add the two like fractions:
240/60 + 45/60 = 240 + 45/60 = 285/60 - 285/60 simplified gives 19/4
- So, 12/3 + 15/20 = 19/4
In mixed form: 43/4
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