Question 88751
One recipe calls for 1/4 teaspoon vanilla. A second recipe requires for 1/2 teaspoon vanilla, and a third recipe calls for 1/8 teaspoon vanilla. How much vanilla is required to make all three recipes? 
:
V = {{{1/4 + 1/2 + 1/8}}}
:
You can see the common denominator would be 8:
V = {{{2/8 + 4/8 + 1/8}}}
:
V = {{{7/8}}}