Q. Evaluate the expression shown below and write your answer as a fraction in simplest form.−211−1411Answer:
Identify LCD: Identify the least common denominator (LCD) for the fractions−211 and −1411. The denominators are 2 and 14. The LCD of 2 and 14 is 14 because 14 is the smallest number that both 2 and 14 can divide into without leaving a remainder.
Convert to Equivalent Fraction: Convert the fraction with the denominator of 2 to an equivalent fraction with the denominator of 14. To do this, multiply both the numerator and the denominator of −211 by 7 (since 14 divided by 2 is 7). −211×77=−1477
Combine Fractions: Now that both fractions have the same denominator, you can combine them by adding their numerators. −1477−1411=14(−77−11)
Perform Subtraction: Perform the subtraction in the numerator.−77−11=−88So, the combined fraction is −1488.
Simplify Fraction: Simplify the fraction −1488 by dividing both the numerator and the denominator by their greatest common divisor (GCD).The GCD of 88 and 14 is 2.−1488÷22=−744