Add 20/5 and 15/12
1st number: 4 0/5, 2nd number: 1 3/12
20/5 + 15/12 is 21/4.
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,
20/5 = 20 × 12/5 × 12 = 240/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
15/12 = 15 × 5/12 × 5 = 75/60 - Add the two like fractions:
240/60 + 75/60 = 240 + 75/60 = 315/60 - 315/60 simplified gives 21/4
- So, 20/5 + 15/12 = 21/4
In mixed form: 51/4
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