-2\div 1/4

Solution

- 2 \div \frac{1}{4}

- 8

Solution steps

- 2 \div \frac{1}{4}

Convert element to fraction:

2 = \frac{2}{1}

= - \frac{2}{1} \div \frac{1}{4}

Apply the fraction rule:

\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c}

= - \frac{2}{1} \times \frac{4}{1}

Apply rule

\frac{a}{1} = a

= - 2 \times 4

Multiply the numbers:

2 \times 4 = 8

= - 8

2 (\frac{x + 1}{2}) - 1

\frac{5}{6} \times \frac{4}{5}

9 \times 1 0^{- 3}

- \frac{2}{5} + \frac{3}{4}

x^{4} - 7 x^{2} - 6 x