need to divide 4 1/8 by 1 1/4
4 1/8 = 33/8
1 1/4 = 5/4
33/8 / 5/4 = 33/8 * 4/5 = 132/40 reduces to 33/10 = 3 3/10
100* 3 3/10 = 330 miles
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