Mathematics, 23.02.2021 21:10, probablyacommunist

7 pt. 13 fl. oz.
+16 pt. 3 fl. oz.
+ 9 pt. 9 fl. oz.

Answers: 3

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answered: Guest

so, converting firstly the mixed fractions to improper fractions and then "adding".

$\bf \stackrel{mixed}{2\frac{9}{10}}\implies \cfrac{2\cdot 10+9}{10}\implies \stackrel{improper}{\cfrac{29}{10}}~\hfill \stackrel{mixed}{5\frac{4}{15}}\implies \cfrac{5\cdot 15+4}{15}\implies \stackrel{improper}{\cfrac{79}{15}} [-0.35em] ~\dotfill$

$\bf -\cfrac{29}{10}+\left( -\cfrac{79}{15} \right)\implies -\cfrac{29}{10}-\cfrac{79}{15}\implies \stackrel{\textit{using the lcd of 30}}{\cfrac{-(3)29-(2)79}{30}}\implies \cfrac{-87-158}{30} \cfrac{-245}{30}\implies -\cfrac{49}{6}\implies -8\frac{1}{6}$

answered: Guest

what are the

answered: Guest

15.36 per mile

but forgot to round

i am pretty sure

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7 pt. 13 fl. oz.
+16 pt. 3 fl. oz.
+ 9 pt. 9 fl. oz....