They all have either a common factor, common multiple, LCF, GCF, LCM, or GCM. The G and L stand for greater and least.
Find answer is the given attachment
A) To cook 1/2 cup of rice, the package tells you that you also need 1 cup of water. The the total volume of ingredients is
.. 1/2 c + 1 c = 1 1/2 c
b) According to the package the ratio of water to rice is
.. water : rice = 1 : 1/2 = 2 : 1
Then the ratio of water to total ingredients is
.. water : (water + rice) = 2 : (2 +1) = 2 : 3
Susan's ratio is incorrect. Susan is using "1" for the total of ingredients, instead of 2+1 = 3. The correct ratio is 2:3.
A:
Ratio of all students in the class to girls is...
15:8
b:
Ratio of boys to girls....
7:8
