Add 45/12 and 9/80
1st number: 3 9/12, 2nd number: 9/80
45/12 + 9/80 is 309/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
45/12 = 45 × 20/12 × 20 = 900/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
9/80 = 9 × 3/80 × 3 = 27/240 - Add the two like fractions:
900/240 + 27/240 = 900 + 27/240 = 927/240 - 927/240 simplified gives 309/80
- So, 45/12 + 9/80 = 309/80
In mixed form: 369/80
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