
Anthony A. answered 02/16/18
Tutor
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Mathematics Specialist, ES/MS/HS/College, AP & Regents Test Tutor
This is a fraction subtraction question! Start with the number of gallons of paint needs and subtract away what she has.
Make sure you convert them to a common denominator!
5/6 *2/2 = 10/12
3/4 *3/3 = 9/12
1 & 10/12 - 9/12 = 1 & 1/12