Answer:
True
Step-by-step explanation:
A common denominator of the mixed numbers is 20. select True or false
Mr. Clements painted his barn for 3 3/5 hours in the morning.
[tex]3\frac{3}{5}=\frac{18}{5}[/tex]
He painted the barn for 5 3/4 hours in the afternoon.
[tex]5\frac{3}{4}=\frac{23}{4}[/tex]
Now we consider the denominator of both fractions 18/5 and 23/4
Least common denominator is 5 times 4 = 20
So its true that the common denominator of mixed numbers is 20