5/7-5/21=

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Solution for 5/7-5/21= equation:


5/7-5/21=0

We simplify the equation to the form, which is simple to understand 
5/7-5/21=0

We move all terms containing  to the left and all other terms to the right. 
0=0-0.71428571428571 + 0.23809523809524

We simplify left and right side of the equation. 
0=-0.47619047619047

0=-0.47619047619047

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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