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 :
(16/100)-((x/360))=0
Step by step solution :
Step 1 :
x
Simplify ———
360
Equation at the end of step 1 :
16 x
——— - ——— = 0
100 360
Step 2 :
4
Simplify ——
25
Equation at the end of step 2 :
4 x
—— - ——— = 0
25 360
Step 3 :
Calculating the Least Common Multiple :
3.1 Find the Least Common Multiple
The left denominator is : 25
The right denominator is : 360
Prime Factor | Left Denominator | Right Denominator | L.C.M = Max {Left,Right} |
---|---|---|---|
5 | 2 | 1 | 2 |
2 | 0 | 3 | 3 |
3 | 0 | 2 | 2 |
Product of all Prime Factors | 25 | 360 | 1800 |
Least Common Multiple:
1800
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 = 72
Right_M = L.C.M / R_Deno = 5
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. 4 • 72 —————————————————— = —————— L.C.M 1800 R. Mult. • R. Num. x • 5 —————————————————— = ————— L.C.M 1800
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:
4 • 72 - (x • 5) 288 - 5x
———————————————— = ————————
1800 1800
Equation at the end of step 3 :
288 - 5x
———————— = 0
1800
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:
288-5x
—————— • 1800 = 0 • 1800
1800
Now, on the left hand side, the 1800 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
288-5x = 0
Solving a Single Variable Equation :
4.2 Solve : -5x+288 = 0
Subtract 288 from both sides of the equation :
-5x = -288
Multiply both sides of the equation by (-1) : 5x = 288
Divide both sides of the equation by 5:
x = 288/5 = 57.600
One solution was found :
x = 288/5 = 57.600How did we do?
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