Operations on Rational Numbers

$\left[\frac{2}{5}-\left(2\frac{2}{5}-2\right) of \left\{1\frac{1}{5}-\frac{2}{5}÷\left(1\frac{1}{3}-\frac{5}{6}\right)\right\}\right]$

The reciprocal of a$\frac{1}{a}$ ,where$a\ne 0$ is _____

The reciprocal of the number $\frac{4}{5}$ is _____

The product of rational numbers with its reciprocal is always equal to _____

State True or False

The product of rational numbers with its reciprocal is always equal to $1$.

$\frac{10}{14}÷-20=$_____

$10÷0$ is 

$\frac{24}{11}÷8=$_____

Is division of $2÷0$ is possible? Explain

Divide any rational number with non zero rational number.

Find the value of $(8÷8)-(275÷275)$.

Solve: $\frac{3}{5}\times \frac{1}{2}$

A tap can fill a tank in $3$ hours and tap B can empty the full tank in $6$ hours. If both the taps opened together, in how much time will the tank filled up?

What number should be subtracted from $\frac{4}{5}$ to get $\frac{3}{7}$

A farmer has a field of area $49\frac{4}{9} \mathrm{hectares}$. He wants to divide it equally among his one son and two daughters. Find the area of each one's share.

Sonia's mobile phone bill for the month of March is $₹350$. The cell phone company charges a monthly rental of $₹200$ and $₹0.50$ a minute per call. If the time duration for which she talked on the phone is $x$ minutes, then find the value of $x$.

What number must be added to $\frac{-5}{8}$ to get $\frac{5}{9}$?

Find : $\frac{-5}{18}-\frac{7}{24}+\frac{5}{12}$

Simplify : $-6\times \left(\frac{-3}{5}\right)\times \left(\frac{-11}{9}\right)\times \left(\frac{21}{-4}\right)$

What you get when you subtract $0$ from $\frac{9}{23}$?