Answer:

She have 17/15 kilograms of meat in her refrigerator.

Step-by-step explanation:

What is asked?                                                                                                       The kilograms of meat she have in her refrigerator.

What are given?                                                                                                     3/4 kilograms of beef                                                                                           2/3 kilograms of chicken

Write the number sentence                                                                                  3/4 + 2/3 = N

Solve

3/4 & 2/3 is a dissimilar fraction.                                                                         So we have to make it a similar fraction.

Their LCM is 12.                                                                                                   So 12 is the denominator.

3/4 = 9/12

12 / 4 = 3

3 x 3 = 9 (Numerator)

2/3 = 8/12

12 / 3 = 4

4 x 2 = 8 (Numerator)

Now that it is similar fraction, we are going to add it.

9/12 + 8/12 = 17/12 or 1 5/12