three fifths of a ton; a (or:
one) quarter of a kilometer;
two thirds per cent (or: two thirds
of one per cent);
one {or: an) hour and a half (or:
one and a half hours);
half a pound; four pence halfpenny;
two and three quarters per cent;
two and two thirds inches;
nought point one nought five of a metre (or:
point one nought five of a metre);
two point one eight pounds;
one seven (or: seventeen) point five
six two tons;
five per cent; twenty three
per cent;
nought point three six per cent (or: point
three six per cent);
two point five per cent.
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