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): "2.79" was replaced by "(279/100)". 2 more similar replacement(s)
Step 1 :
279
Simplify ———
100
Equation at the end of step 1 :
3875 279
———— - ———
1000 100
Step 2 :
31
Simplify ——
8
Equation at the end of step 2 :
31 279
—— - ———
8 100
Step 3 :
Calculating the Least Common Multiple :
3.1 Find the Least Common Multiple
The left denominator is : 8
The right denominator is : 100
| Prime Factor | Left Denominator | Right Denominator | L.C.M = Max {Left,Right} |
|---|---|---|---|
| 2 | 3 | 2 | 3 |
| 5 | 0 | 2 | 2 |
| Product of all Prime Factors | 8 | 100 | 200 |
Least Common Multiple:
200
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 = 25
Right_M = L.C.M / R_Deno = 2
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. 31 • 25 —————————————————— = ——————— L.C.M 200 R. Mult. • R. Num. 279 • 2 —————————————————— = ——————— L.C.M 200
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:
31 • 25 - (279 • 2) 217
——————————————————— = ———
200 200
Final result :
217
——— = 1.08500
200
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