35 \text { gid } 40 \text { phút: } 5
Evaluate
280idghptú
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\frac{35igd\times 40phút}{5}
Multiply 35 and i to get 35i.
\frac{1400igdphút}{5}
Multiply 35i and 40 to get 1400i.
280igdphút
Divide 1400igdphút by 5 to get 280igdphút.
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