Lacy runs 5 1/4 km on Thursday. She runs 1 1/2 times as far on Saturday. How many km did she run on Saturday? Express your answer as a fraction.
Mathematics · Middle School · Mon Jan 18 2021
Answered on
Given the statement:
Lacy runs 5 1/4 km on Thursday. She runs 1 1/2 times as far on Saturday.
Determine how many km did she run on Saturday.
Solution:
In order to determine how many km did she run on Saturday, we simply need to multiply her distance on Thursday by 1 ½. Before doing so, since we have mixed numbers, we can convert them individually to improper fractions by multiplying the whole number to the denominator, and then adding the product to the numerator.
5 ¼
= 21 / 4
1 ½
= 3/2
= (21 / 4) (3/2)
= 63/8 km
Final answer:
Lacy ran 63/8 km on Saturday.