27
18
----
45
GCF of 45 = 15
Here is a word document on Greatest Common Factors and how to solve it.
Answer:
12 days
Step-by-step explanation:
Total gallons of the family's drinking water needs = gallons consumed by children + gallons consumed by adults
3
+ 1
=
Converting to decimals
3.5 + 1.75 = 5.25 = 5
If there are 63 gallons, the water supply would last for :
63 / 5.25 =12 days
7,215: 34 = 0,212205882352941