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Julli [10]
4 years ago
10

Help please !!!!!!!!!!!!!!!

Mathematics
2 answers:
vfiekz [6]4 years ago
7 0
8/9-2/5
40/45-18/45
(40-18)/45
22/45 hours or 0.48 hours
nexus9112 [7]4 years ago
5 0
You would do 8/9 - 3/5

convert everything to whatever/45
so 40/45 - 27/45

the answer is 13/45 of an hour.
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