if kelly gave 1/3 of a pizza to holly and 1/5 to diane how much did she have left
Process:
1 - 1/3 -1/5 = 1 - 5/15 - 3/15 = 7/15
7/15 :)
7/15
7/15
To find out how much pizza Kelly had left after giving portions to Holly and Diane, we can subtract the fractions that were given away from the whole pizza.
Kelly initially had a whole pizza, which can be represented by the fraction 1/1 or simply 1.
She gave 1/3 of the pizza to Holly and 1/5 to Diane. To add these fractions, we need to find a common denominator. In this case, the least common denominator (LCD) is 15, which is the smallest multiple of 3 and 5.
To convert 1/3 into a fraction with a denominator of 15, we multiply both the numerator and denominator by 5. This gives us 5/15.
Similarly, to convert 1/5 into a fraction with a denominator of 15, we multiply both the numerator and denominator by 3. This gives us 3/15.
Now we can subtract the portions given away from the whole pizza:
1 - (5/15 + 3/15) = 1 - 8/15.
To subtract fractions with the same denominator, we write the whole number 1 as a fraction with the denominator of 15, which is 15/15.
15/15 - 8/15 = 7/15.
Therefore, Kelly had 7/15 of the pizza left after giving portions to Holly and Diane.