Finite Math Examples

Simplify (49x)/(3x-21)+(9x)/(21x-147)
Step 1
Simplify each term.
Tap for more steps...
Step 1.1
Factor out of .
Tap for more steps...
Step 1.1.1
Factor out of .
Step 1.1.2
Factor out of .
Step 1.1.3
Factor out of .
Step 1.2
Cancel the common factor of and .
Tap for more steps...
Step 1.2.1
Factor out of .
Step 1.2.2
Cancel the common factors.
Tap for more steps...
Step 1.2.2.1
Factor out of .
Step 1.2.2.2
Factor out of .
Step 1.2.2.3
Factor out of .
Step 1.2.2.4
Cancel the common factor.
Step 1.2.2.5
Rewrite the expression.
Step 1.3
Factor out of .
Tap for more steps...
Step 1.3.1
Factor out of .
Step 1.3.2
Factor out of .
Step 1.3.3
Factor out of .
Step 2
To write as a fraction with a common denominator, multiply by .
Step 3
To write as a fraction with a common denominator, multiply by .
Step 4
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Tap for more steps...
Step 4.1
Multiply by .
Step 4.2
Multiply by .
Step 4.3
Multiply by .
Step 4.4
Multiply by .
Step 5
Combine the numerators over the common denominator.
Step 6
Simplify the numerator.
Tap for more steps...
Step 6.1
Factor out of .
Tap for more steps...
Step 6.1.1
Factor out of .
Step 6.1.2
Factor out of .
Step 6.1.3
Factor out of .
Step 6.2
Multiply by .
Step 6.3
Multiply by .
Step 6.4
Add and .
Step 7
Move to the left of .