21/4+8/5=

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Solution for 21/4+8/5= equation:


21/4+8/5=0

We simplify the equation to the form, which is simple to understand 
21/4+8/5=0

We move all terms containing  to the left and all other terms to the right. 
0=0-5.25-1.6

We simplify left and right side of the equation. 
0=-6.85

0=-6.85

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

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