4 3/7 into an improper fraction .

Multiply the whole number by the denominator. For example, consider 4 3/7. The whole number is 4, and the denominator is 7. The product equals 28.

Add the product to the numerator. Using the example, add 28 and 3.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!