Question 188999
1) 14 Mi 240 yrds 9 in - 6 mi 1200 yds 10 in = 
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=(14-6)mi + (240-1200) yds + (9-10) in

= 8 mi - 960 yds - 1 in

= 7 mi + (1760-960) yds - 1 in

= 7 mi + 800 yds - 1 in

= 7 mi + 799 yds +(36-1)in

= 7 mi + 799 yds + 35 in
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2) 58 yds 86 in + 26 yds 26 in 
= (58 + 26) yds + (86+26) in
= (84) yds + (112) in
= (84 + 3.111) yds
= 87 yds + 3.996 in
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Cheers,
Stan H.