Answer:
a. 3/2
b. 1
Explanation:
A. To simplify the expression, we can cancel out the common factor of j:
9/j * j/54 = (9/1 * 1/6) = 3/2
Therefore, 9/j * j/54 simplifies to 3/2.
B. To divide fractions, we can multiply the first fraction by the reciprocal of the second fraction. That is,
(a/b) ÷ (c/d) = (a/b) x (d/c)
Using this rule, we can simplify the given expression as follows:
6k/8m ÷ 3k/4m = (6k/8m) x (4m/3k)
= (6/8) x (4/3)
= 2/2
= 1