GCM of 8 and 9 is 72
6/9 = 64/72
7/8 = 63/72
1 1/72
Answer:

Step-by-step explanation:
When dividing numbers with powers, it is handy to remember that

so

Answer:
x=116
Step-by-step explanation:
subtract 21 on both sides
Answer:
An equation represents the number of pieces of lasagna that are left after dinner is 
Step-by-step explanation:
Each piece of Lasagna is 1/6 of the pan
Let x be the number of pieces left
So, x pieces is
of the pan
We are given that After dinner 2/3 of a pan of lasagna is left.
So, 

x=4
So, Number of pieces left = 4
Hence An equation represents the number of pieces of lasagna that are left after dinner is 