9q-4= 3r-6 What does r=
2 answers:
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The LCD of the denominator is 12. For this one it is possible to just 'see' that 6 is a divisor of 12. When in doubt, you can always get an answer by just multiplying the denominators. (ie., you can turn 11/12 into 66/72 and 1/6 into 12/72).
In this case, the easiest is to convert 1/6 into 2/12. (multiply both numbers by 2).
Then it becomes:
In this case, the easiest is to convert 1/6 into 2/12. (multiply both numbers by 2).
Then it becomes: