4 1/2 - 1 8/10 USING FRACTION MODEL

2 7/10

turn both 4 1/2 and 1 8/10 into a fraction so it will be 9/2 and 18/10 then make them have commen denominators; 45/10 and 18/10 and subtract and simplify 45/10 - 18/10= 27/10 = 2 7/10

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!

Equatorial triangle and obtuce angle