Question

At a butcher​ shop, Hilda bought 6 9/20 lb of beef and some pork. She left with 17 17/25 lb of meat. Express the number of pounds of pork she bought using a decimal.

Answer 1

56.15

Explanation:

First, convert
`6(9)/(20)` lbs to a decimal. Multiply the main number (6) by the denominator (20) and then add that number to the numerator (9). The number you will get will be (6 x 20)+9 = 129. 129 is now the new numerator as an improper fraction so the improper fraction is now
`(129)/(20)`.

Now make
`17(17)/(25)` lbs an improper fraction. It would be
`(442)/(25)`.

Now subtract the amount of pork from the total amount of meat.
`(442)/(25)` -
`(129)/(20)` . Find a common denominator. I'm going to use 500, although there might be something less.

`(5615)/(100)` is the result. Now you can either start dividing or simplify the fraction, which hopefully you already know how to do. 5615 ÷ 100 = 56.15

Really hope this helped, I tried explaining well! Ask more questions if you need!