posted by nena on .
Can someone check and tell me if these are correct or not.
Subtract 7/9 - (-13/18)=-11/18
find the reciprocal of (-1/7)(14/3)(9)
You have not provided an answer to the first one.
The second one is wrong. Tou are adding two positive fractions and so cannot get a negative number. Concert 7/9 to 14/18 and add the fractions. Then reduce to lowest terms. The answer might be an integer.
The third answer is correct.
The reciprocal will be (-7)(3/14)(1/9)
(Multiply the reciprocals of each factor)