7\div 1/4

Solution

7 \div \frac{1}{4}

28

Solution steps

7 \div \frac{1}{4}

Convert element to fraction:

7 = \frac{7}{1}

= \frac{7}{1} \div \frac{1}{4}

Apply the fraction rule:

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

= \frac{7}{1} \times \frac{4}{1}

Apply rule

\frac{a}{1} = a

= 7 \times 4

Multiply the numbers:

7 \times 4 = 28

= 28

(x^{- 2} - y^{- 1})^{- 3}

3 \frac{1}{2} \div \frac{1}{2}

2^{99} + 2^{99}

- (- 2) + 1

\frac{1}{2 π \cdot 100 \cdot 1 0 ^{- 9} \cdot 51000}