Question

Please help me on this

Answer 1

`(4)/(90)`

Explanation:

`(4)/(9)` -
`(4)/(10)`

to subtract the fractions we require them to have a common denominator

the LCM of 9 and 10 is 90

= =
`(4(10))/(9(10))` -
`(4(9))/(10(9))`

=
`(40)/(90)` -
`(36)/(90)`

=
`(40-36)/(90)`

=
`(4)/(90)`