Linda had 42 fliers to post around town. Last week, she posted 2/3 of them. This week she posted 5/7 of the remaining flires. How many fliers has she still not posted?

4

Step-by-step explanation:

Linda has 42 and posts 2/3 the first day

2/3 of 42 is 28

this week she has 14 left and hands out 5/7 of them

5/7 of 14 is 10

In total Linda has posted 38 fliers which means there are 4 left

4

Step-by-step explanation:

Last week she posted 2/3 of the 42 fliers. This means she posted (2/3) * 42 fliers.

(2/3) * 42

84/3

28

So she posted 28 last week.

So of the 42, 42-28=14 remain

This week she posted 5/7 of the remaining fliers.

So she posted 5/7 of the 14 that remainder. This means she posted (5/7) * 14 fliers.

(5/7) * 14

70/7

10

So she posted 10 this week.

So of the 42, 42-28-10=4 remain.

She hasn't posted 4 fliers.