Add 45/12 and 15/90
1st number: 3 9/12, 2nd number: 15/90
45/12 + 15/90 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
45/12 = 45 × 15/12 × 15 = 675/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
15/90 = 15 × 2/90 × 2 = 30/180 - Add the two like fractions:
675/180 + 30/180 = 675 + 30/180 = 705/180 - 705/180 simplified gives 47/12
- So, 45/12 + 15/90 = 47/12
In mixed form: 311/12
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