The sum of (eight and nine tenths) plus (nine and eight tenths) is (eighteen and seven tenths). 8.9 + 9.8 = 18.7
It is seventy-eight and nine tenths.
Nine tenths minus eight fifteenths equals eleven thirtieths.
17/20
8.9
Nine and eight tenths.
8.9
$8.90
Eight and nine tenths.
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Yes.
Eight-teen twenty'ths