Reduce `(-45)/30` to the standard for

Write (24)/(-30) in standard form.

Find the standard form of -18/45

Reduce to standard form: -3/-15

Reduce to standard form: 36/-24

Reduce to standard form : (i) 36/(-24) (ii) (-3)/(-15)

Reduce to standard form :(i)(36)/(-24) (ii) (-3)/(-15)

Reduce 45/105 in its irreducible form.

The standard Deviation of 30 observation of a sample is 4.5 If each observation be subtracted 10, the find the new standard deviation of the resulting observations.