Understand Notation: First, we need to understand the notation used. The double slash (//) is not standard in mathematical operations, but it seems to be used here to denote fractions. So, we interpret 3//4 as 43, 3//8 as 83, and 1//8 as 81. Now, let's start by simplifying each term separately.
Simplify First Term: Simplify the first term: 0.75÷43. To divide by a fraction, we multiply by its reciprocal. So, we have 0.75×34.Calculation: 0.75×34=43×34=1.
Simplify Second Term: Simplify the second term: 0.75÷83. Again, we multiply by the reciprocal of the fraction. So, we have 0.75×38.Calculation: 0.75×38=43×38=2.
Simplify Third Term: Simplify the third term: 0.375÷83. Multiply by the reciprocal of the fraction. So, we have 0.375×38.Calculation: 0.375×38=83×38=1.
Simplify Fourth Term: Simplify the fourth term: 0.0625÷81. Multiply by the reciprocal of the fraction. So, we have 0.0625×18.Calculation: 0.0625×8=161×8=0.5.
Combine Simplified Terms: Now, we combine all the simplified terms: 1−2+1−0.5.Calculation: 1−2+1−0.5=0−0.5=−0.5.
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