Question

Please help me do this and explain in detail. I need this asap. ​

Answer 1

22, 21 and 9

Explanation:

(a)

there are 11 ' elevenths' in 1, that is 1 =
`(11)/(11)`

then 2 = 2 × 11 " elevenths' = 22 ' elevenths'

(b)

note that 1
`(9)/(12)` = 1 +
`(9)/(12)`

there are 12 ' twelfths' in 1 , that is 1 =
`(12)/(12)`

there are 9' twelfths' in
`(9)/(12)`

then there are 12 + 9 = 21 ' twelfths' in 1
`(9)/(12)`

(c)

1
`(4)/(5)` = 1 +
`(4)/(5)`

there are 5 ' fifths' in 1 , that is 1 =
`(5)/(5)`

there are 4 ' fifths' in
`(4)/(5)`

then there are 5 + 4 = 9 ' fifths' in 1
`(4)/(5)`