Solve 20-frac{60sqrt{7}}{7}

$$20- \frac{ 60 \sqrt{ 7 } }{ 7 }$$

Evaluate

$$-\frac{60\sqrt{7}}{7}+20\approx -2.677868381$$

Short Solution Steps

To add or subtract expressions, expand them to make their denominators the same. Multiply 20 times \frac{7}{7}.

$$\frac{20\times 7}{7}-\frac{60\sqrt{7}}{7}$$

Since \frac{20\times 7}{7} and \frac{60\sqrt{7}}{7} have the same denominator, subtract them by subtracting their numerators.

$$\frac{20\times 7-60\sqrt{7}}{7}$$

Do the multiplications in 20\times 7-60\sqrt{7}.

$$\frac{140-60\sqrt{7}}{7}$$

Factor

$$\frac{20 \sqrt{7} {(\sqrt{7} - 3)}}{7} = -2.6778683805536327$$