Question

xy/a - 1/b

Which of the following is equivalent to the above expression?

1. axy - b/ab

2. a - bxy/ab

3. b - axy/ab

4. bxy - a/ab

Answer 1

@jim_thompson5910

Answer 2

"Which of the following"

Where are the options? :P

Answer 3

Without seeing the options I can't really tell you what steps to take to get to your answer. :b

Answer 4

sorry .....hold up....I gtg but let me see if I can do it real fast

Answer 5

axy - b/ab

a - bxy/ab

b - axy/ab

bxy - a/ab

Answer 6

@jim_thompson5910

Answer 7

what is the LCD of \[\Large \frac{xy}{a} - \frac{1}{b}\]

Answer 8

ab?

Answer 9

correct

Answer 10

how can we get the first fraction to have a denominator of ab?

Answer 11

hint: multiply top and bottom by some expression

Answer 12

multiply it with something that has b in the denominator?