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2 answers:
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Answer: C
Step-by-step explanation:
Find the least common denominator of 4, 3, and 12.
4-3-12 | 3
4-1-4 | 4
1-1-1 |-------- 12
The first fractions needs to be multiplied by 3, and the second fraction, by 4
Solve;
Add the fractions with positive signs and subtract the one with negative sign.
Solve;
Simplify by 4;
16/4=4
12/4=3