## lindseyharrison What is the simplified form of x/3 - y/4 all over x/4 + y/3 one year ago one year ago

1. barrycarter

Hint: add the two fractions you have in the numerator (and then in the denominator) and then use the reciprocal rule to divide the results

2. lindseyharrison

4x - 3y/3x + 4y? @barrycarter

3. timo86m

4. barrycarter

You can always doublecheck your answers at wolframalpha.com, but that sounds right... multiplying both numerator and denominator by 3*4=12 would also have worked

5. lindseyharrison

|dw:1346444370614:dw|

6. lindseyharrison

@timo86m

7. timo86m

8. timo86m

|dw:1346444506571:dw|

9. timo86m

since simplifying top then bottom will result in fraction you mulitply by reciprocal

10. timo86m

|dw:1346444660599:dw|

11. timo86m

${\frac {4\,x-3\,y}{3\,x-4\,y}}$