Question

Which of the following describes a correct method for finding the sum -7/2+3/4

A. Write the sum of the numerators over the sum of the denominators. Simplify.

B. Rewrite using the LCD. Write the sum of the numerators over the sum of the denominators. Simplify

C. Rewrite Using the LCD. Write the sum of the numerators over the common denominator. Simplify

D. Rewrite using the LCD. Write the difference of the numerators over the common denominator. SImplify

Answer 1

Answer : (C) Rewrite Using the LCD. Write the sum of the numerators over the common denominator. Simplify


Rewrite Using the LCD
-7/2+3/4 = -14/4 + 3/4

Write the sum of the numerators over the common denominator:
-14/4 + 3/4 = 11/4

Simplify
11/4 = 2 3/4