Solution - Adding, subtracting and finding the least common multiple
Other Ways to Solve:
Step by Step Solution
Reformatting the input :
Changes made to your input should not affect the solution:
(1): "0.007" was replaced by "(007/1000)". 2 more similar replacement(s)
Step 1 :
7
Simplify ————
1000
Equation at the end of step 1 :
3 7
——— - ————
100 1000
Step 2 :
3
Simplify ———
100
Equation at the end of step 2 :
3 7
——— - ————
100 1000
Step 3 :
Calculating the Least Common Multiple :
3.1 Find the Least Common Multiple
The left denominator is : 100
The right denominator is : 1000
| Prime Factor | Left Denominator | Right Denominator | L.C.M = Max {Left,Right} |
|---|---|---|---|
| 2 | 2 | 3 | 3 |
| 5 | 2 | 3 | 3 |
| Product of all Prime Factors | 100 | 1000 | 1000 |
Least Common Multiple:
1000
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 = 10
Right_M = L.C.M / R_Deno = 1
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. 3 • 10 —————————————————— = —————— L.C.M 1000 R. Mult. • R. Num. 7 —————————————————— = ———— L.C.M 1000
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:
3 • 10 - (7) 23
———————————— = ————
1000 1000
Final result :
23
———— = 0.02300
1000
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