Q. Evaluate the expression shown below and write your answer as a fraction in simplest form.−57+72Answer:Submit Answer
Find Common Denominator: To solve the expression, we need to find a common denominator for the fractions−57 and 72. The common denominator for 5 and 7 is 35.
Convert to Equivalent Fractions: Now we convert each fraction to an equivalent fraction with the common denominator of 35. For the first fraction, we multiply both the numerator and the denominator by 7 to get −3549. For the second fraction, we multiply both the numerator and the denominator by 5 to get 3510.
Add Fractions: Next, we add the two fractions with the common denominator. The operation is subtraction because the first fraction is negative: −3549+3510.
Perform Subtraction: Performing the subtraction, we get −3539. This is the result of the expression in fraction form.
Simplify Result: The fraction −3539 is already in its simplest form because 39 and 35 have no common factors other than 1.