Whakaoti mō f
f = \frac{6400}{21} = 304\frac{16}{21} \approx 304.761904762
Tautapa f
f≔\frac{6400}{21}
Tohaina
Kua tāruatia ki te papatopenga
f=\frac{288}{343+35}\times 400
Tangohia te 25 i te 313, ka 288.
f=\frac{288}{378}\times 400
Tāpirihia te 343 ki te 35, ka 378.
f=\frac{16}{21}\times 400
Whakahekea te hautanga \frac{288}{378} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 18.
f=\frac{16\times 400}{21}
Tuhia te \frac{16}{21}\times 400 hei hautanga kotahi.
f=\frac{6400}{21}
Whakareatia te 16 ki te 400, ka 6400.
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