Jim’s backyard is 15 5/6 long and 10 2/5 wide. Jim buys sod in pieces that are 1 1/3 long and 1 1/3 wide. How many pieces of sod will Jim need to buy to cover his yard with sod?

Sagot :

Answer:

93

Step-by-step explanation:

((15 and 5/6) * (10 and 2/5)) divided by ( (1 and 1/3) * (1 and 1/3)) = 92 and 5/8

95      52                       4          4

--- * -----    divided by ------ * ------ =

6       5                         3         3

19       26                       16

----  * ----- divided by   ---------   <--- 95 cancels 5 by a factor of 19; the greatest common factor of 52 and 6 is 2

 3         1                        9

19   *    26 *    9

--------------------   <----   Remember when dividing fractions, KFC: keep , flip , change

     3  * 16

19 * 13 * 3

------------- <--- 9 cancels the 3; the greatest common factor of 26 and 8 is 2

        8

741/8 = 92 and 5/8

ninety two and five eigths