Respuesta :
The ones that go in 9/8 group are 18/16 and 1/8 × 9.
The ones that go into 8/9 group are 1/18 × 16, 8/9 and 16/18.
Unfortunately, 1/8 × 1/9 does not fit in any of these groups.
The ones that go into 8/9 group are 1/18 × 16, 8/9 and 16/18.
Unfortunately, 1/8 × 1/9 does not fit in any of these groups.