Identify common denominator: Identify the common denominator for the fractions−31 and −47.The common denominator for 3 and 4 is 12.
Convert to equivalent fractions: Convert each fraction to an equivalent fraction with the common denominator of 12.For −31, multiply both the numerator and the denominator by 4 to get −124.For −47, multiply both the numerator and the denominator by 3 to get −1221.
Add fractions with common denominator: Add the two fractions with the common denominator.−124+(−1221)=12−4−21
Perform numerator addition: Perform the addition of the numerators. −4−21=−25 So, the combined fraction is −1225.
Check for further simplification: Check if the fraction −1225 can be simplified further.Since 25 and 12 have no common factors other than 1, the fraction is already in its simplest form.
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