Final answer:
To find the fraction of Gill's steps that were not taken yet, we need to subtract the fraction of steps she has already taken from 1. Adding the fractions of steps she has already taken, we get 11/30. Subtracting this fraction from 1 gives us 19/30 as the fraction of steps not taken yet. The correct answer is option D .
Step-by-step explanation:
To find the fraction of Gill's steps that were not taken yet, we need to subtract the fraction of steps she has already taken from 1. Let's break down the steps she has taken:
- Before breakfast, she took 1/15 of her steps.
- Walking into the town, she took another half of her steps, which is 1/2.
- Walking round the supermarket, she took 1/10 of her steps.
To find the total fraction of steps she has taken, we need to add these fractions: 1/15 + 1/2 + 1/10 = 1/15 + 7/30 + 3/30 = 11/30. Now, subtracting this fraction from 1 gives us the fraction of steps not taken yet: 1 - 11/30 = 19/30.
Therefore, the fraction of Gill's steps that were not taken yet is 19/30 (Option D).