Calculating and shorten as far as possible.

a) 5/9 - 2/3 + 11/18

b) 7/12
/
2/9

Question

Calculating and shorten as far as possible.

a) 5/9 - 2/3 + 11/18

b) 7/12
      /
    2/9

anonymous · Answer

For a) get everything over a common denominatorthat would be 18

multiply 5/9 by 2/2 to get 10/18
multiply -2/3 by 6/6 to get -12/18
add the numerators and leave the denominator alone
(10-12+11)/18=9/18=1/2

b) is a complex fraction, so you'll want to multiply by the least common denominator, which would be (9)(12).

|dw:1393599209993:dw|

7*9=63 and 2*12=24, so now you have 63/24