How to solve 77 1/2 * 4 1/5

1. Factor the equation (x + 2)(x + 3) = 0. 2. Set each factor equal to zero: x + 2 = 0 and x + 3 = 0. 3. Solve for x: x = -2 and x = -3.

Solve 77 1/2 * 4 1/5 | Equatix

Basic Math

Pre-Algebra

Algebra

Trigonometry

Calculus

Precalculus

Statistics

Finite Math

Linear Algebra

Chemistry

Question

$$77\frac{1}{2}\times4\frac{1}{5}$$

Evaluate

$\frac{651}{2}=325.5$

Solution Steps

Multiply $77$ and $2$ to get $154$.

$$\frac{154+1}{2}\times \frac{4\times 5+1}{5}$$

Add $154$ and $1$ to get $155$.

$$\frac{155}{2}\times \frac{4\times 5+1}{5}$$

Multiply $4$ and $5$ to get $20$.

$$\frac{155}{2}\times \frac{20+1}{5}$$

Add $20$ and $1$ to get $21$.

$$\frac{155}{2}\times \frac{21}{5}$$

Multiply $\frac{155}{2}$ times $\frac{21}{5}$ by multiplying numerator times numerator and denominator times denominator.

$$\frac{155\times 21}{2\times 5}$$

Do the multiplications in the fraction $\frac{155\times 21}{2\times 5}$.

$$\frac{3255}{10}$$

Reduce the fraction $\frac{3255}{10}$ to lowest terms by extracting and canceling out $5$.

$$\frac{651}{2}$$

Show Solution

Factor

$\frac{3 \cdot 7 \cdot 31}{2} = 325\frac{1}{2} = 325.5$