Find Common Denominator: To combine the fractions, we need to find a common denominator. The denominators are 2 and 8, and the least common denominator (LCD) is 8.
Rewrite First Fraction: Rewrite the first fraction with the common denominator by multiplying both the numerator and the denominator by 4. This gives us −2×43×4=−812.
Combine Fractions: Now we have two fractions with the same denominator: −812 and −83. We can combine these by adding the numerators and keeping the common denominator.
Add Numerators: Add the numerators: −12+(−3)=−15. So the combined fraction is −815.
Check for Simplification: Check if the fraction can be simplified further. Since the numerator and the denominator have no common factors other than 1, the fraction is already in its simplest form.
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