Denver Decorative Concrete & Custom MasonryElementary Math – John is building a patio. Each section requires 2/3 of a cubic yard of concrete.?
… The concrete truck holds two and 1/4 cubic yards of concrete. If there is not enough for a full section at the end, John can put in a divider and make a partial section. How many sections can John makes with the concrete in the truck?
It is three sections
4 1/2 sections:
2 1/4 divided by 2/3
I never prefer mix fractions so lets write two 1/4 as [(2*4)+1]/4 = 9/4
Now, we simply have to divide total available cubuc yards of concrete by the amount needed for a single sections
so number of sections = (9/4) / (2/3)
= 9/4 * 3/2 = 27/8
We can change this back to a mix fraction three 3/8
So John can make three full sections and 1 partial section, 3/8 th of a section
No. of sections = 2¼ / ⅔
No. of sections :-
9/4
——
2/3
27
—–
8
No. of complete sections = 3