Solution - Adding, subtracting and finding the least common multiple
Step by Step Solution
Rearrange:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
100/3-(x/3200)=0
Step by step solution :
Step 1 :
x
Simplify ————
3200
Equation at the end of step 1 :
100 x
——— - ———— = 0
3 3200
Step 2 :
100
Simplify ———
3
Equation at the end of step 2 :
100 x
——— - ———— = 0
3 3200
Step 3 :
Calculating the Least Common Multiple :
3.1 Find the Least Common Multiple
The left denominator is : 3
The right denominator is : 3200
| Prime Factor | Left Denominator | Right Denominator | L.C.M = Max {Left,Right} |
|---|---|---|---|
| 3 | 1 | 0 | 1 |
| 2 | 0 | 7 | 7 |
| 5 | 0 | 2 | 2 |
| Product of all Prime Factors | 3 | 3200 | 9600 |
Least Common Multiple:
9600
Calculating Multipliers :
3.2 Calculate multipliers for the two fractions
Denote the Least Common Multiple by L.C.M
Denote the Left Multiplier by Left_M
Denote the Right Multiplier by Right_M
Denote the Left Deniminator by L_Deno
Denote the Right Multiplier by R_Deno
Left_M = L.C.M / L_Deno = 3200
Right_M = L.C.M / R_Deno = 3
Making Equivalent Fractions :
3.3 Rewrite the two fractions into equivalent fractions
Two fractions are called equivalent if they have the same numeric value.
For example : 1/2 and 2/4 are equivalent, y/(y+1)2 and (y2+y)/(y+1)3 are equivalent as well.
To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.
L. Mult. • L. Num. 100 • 3200 —————————————————— = —————————— L.C.M 9600 R. Mult. • R. Num. x • 3 —————————————————— = ————— L.C.M 9600
Adding fractions that have a common denominator :
3.4 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
100 • 3200 - (x • 3) 320000 - 3x
———————————————————— = ———————————
9600 9600
Equation at the end of step 3 :
320000 - 3x
——————————— = 0
9600
Step 4 :
When a fraction equals zero :
4.1 When a fraction equals zero ...Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
320000-3x
————————— • 9600 = 0 • 9600
9600
Now, on the left hand side, the 9600 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
320000-3x = 0
Solving a Single Variable Equation :
4.2 Solve : -3x+320000 = 0
Subtract 320000 from both sides of the equation :
-3x = -320000
Multiply both sides of the equation by (-1) : 3x = 320000
Divide both sides of the equation by 3:
x = 320000/3 = 106666.667
One solution was found :
x = 320000/3 = 106666.667How did we do?
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