What is the answer to 3/x = 4/5 ?

The answer to 3/x = 4/5 is x= 15/4

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3/x = 4/5

\frac{3}{x} = \frac{4}{5}

x = \frac{15}{4}

Decimal Notation

x = 3.75

Solution steps

\frac{3}{x} = \frac{4}{5}

Cross multiply

15 = x \cdot 4

Switch sides

x \cdot 4 = 15

Divide both sides by

4

x = \frac{15}{4}

Verify Solutions

Find undefined (singularity) points:

x = 0

Combine undefined points with solutions:

x = \frac{15}{4}

- \frac{3}{5 x} + \frac{3}{35 x} = 18

a, z = \frac{m}{a}

\frac{( - 2 )}{( x )} = 24667

\frac{112}{7} = \frac{8}{c - 3}

- x = \frac{1}{x}