Add 45/12 and 20/5
1st number: 3 9/12, 2nd number: 4 0/5
45/12 + 20/5 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
45/12 = 45 × 5/12 × 5 = 225/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
20/5 = 20 × 12/5 × 12 = 240/60 - Add the two like fractions:
225/60 + 240/60 = 225 + 240/60 = 465/60 - 465/60 simplified gives 31/4
- So, 45/12 + 20/5 = 31/4
In mixed form: 73/4
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