Question

Susan spent an afternoon baking chocolate chip cookies. She gave 1/5 of the cookies to her neighbor, 1/3 to her sewing club, and 1/4 to her son's school for a bake sale. What percentage of cookies did she keep for her self?

Answer 1

Answer:

21.66%

Step-by-step explanation:

• 1/5= 12/60

• 1/3= 20/60

• 1/4= 15/60

After adding all of these fractions together:

• 47/60

To find the fraction of how many cookies are left subtract 47/60 from 60/60

• 60/60 - 47/60 = 13/50

To find the decimal point of this fraction, divide the numerator by the denominator, this will equal:

• .21666666666

To  find the percentage, move the decimal point to the right two places

• 21.66%