Solve 639\div20 | Equatix

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Question

$$639 \div 20$$

Evaluate

$\frac{639}{20}=31.95$

Steps For Long Division Method

Use the $1^{st}$ digit $6$ from dividend $639$

$$\begin{array}{l}\phantom{20)}\phantom{1}\\20\overline{)639}\\\end{array}$$

Since $6$ is less than $20$, use the next digit $3$ from dividend $639$ and add $0$ to the quotient

$$\begin{array}{l}\phantom{20)}0\phantom{2}\\20\overline{)639}\\\end{array}$$

Use the $2^{nd}$ digit $3$ from dividend $639$

$$\begin{array}{l}\phantom{20)}0\phantom{3}\\20\overline{)639}\\\end{array}$$

Find closest multiple of $20$ to $63$. We see that $3 \times 20 = 60$ is the nearest. Now subtract $60$ from $63$ to get reminder $3$. Add $3$ to quotient.

$$\begin{array}{l}\phantom{20)}03\phantom{4}\\20\overline{)639}\\\phantom{20)}\underline{\phantom{}60\phantom{9}}\\\phantom{20)9}3\\\end{array}$$

Use the $3^{rd}$ digit $9$ from dividend $639$

$$\begin{array}{l}\phantom{20)}03\phantom{5}\\20\overline{)639}\\\phantom{20)}\underline{\phantom{}60\phantom{9}}\\\phantom{20)9}39\\\end{array}$$

Find closest multiple of $20$ to $39$. We see that $1 \times 20 = 20$ is the nearest. Now subtract $20$ from $39$ to get reminder $19$. Add $1$ to quotient.

$$\begin{array}{l}\phantom{20)}031\phantom{6}\\20\overline{)639}\\\phantom{20)}\underline{\phantom{}60\phantom{9}}\\\phantom{20)9}39\\\phantom{20)}\underline{\phantom{9}20\phantom{}}\\\phantom{20)9}19\\\end{array}$$

Since $19$ is less than $20$, stop the division. The reminder is $19$. The topmost line $031$ is the quotient. Remove all zeros at the start of the quotient to get the actual quotient $31$.

$$\text{Quotient: }31$$ $$\text{Reminder: }19$$

Show Solution

Factor

$\frac{3 ^ {2} \cdot 71}{2 ^ {2} \cdot 5} = 31\frac{19}{20} = 31.95$