Add 45/12 and 80/30
1st number: 3 9/12, 2nd number: 2 20/30
45/12 + 80/30 is 77/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 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 30 × 2 = 60,
80/30 = 80 × 2/30 × 2 = 160/60 - Add the two like fractions:
225/60 + 160/60 = 225 + 160/60 = 385/60 - 385/60 simplified gives 77/12
- So, 45/12 + 80/30 = 77/12
In mixed form: 65/12
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