Basic Math Examples

$\frac{3 a}{4 c} - \frac{7 a}{4 c}$

Step 1

Combine the numerators over the common denominator.

$\frac{3 a - 7 a}{4 c}$

Step 2

Rewrite $\frac{3 a - 7 a}{4 c}$ in a factored form.

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Step 2.1

Subtract $7 a$ from $3 a$ .

$\frac{- 4 a}{4 c}$

Step 2.2

Reduce the expression $\frac{- 4 a}{4 c}$ by cancelling the common factors.

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Step 2.2.1

Factor $4$ out of $- 4 a$ .

$\frac{4 (- a)}{4 c}$

Step 2.2.2

Factor $4$ out of $4 c$ .

$\frac{4 (- a)}{4 (c)}$

Step 2.2.3

Cancel the common factor.

$\frac{4 (- a)}{4 c}$

Step 2.2.4

Rewrite the expression.

$\frac{- a}{c}$