1.Proszę o pomoc :) Najlepiej jak by było rozpisane :)
4,28+1 2/7 ( jedna i dwie siódme) x (-2,5)=
PS.Z góry dzięki ;)
4,28+1 2/7 x (-2,5)= 4,28 + 9/7 x (-25/10) = 4,28 + 9/7 x (-5/2) =
= 4,28 – 45/14 = 4,28 – 3,21 ≈ 1,06
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4,28+1 2/7 x (-2,5)= 4,28 + 9/7 x (-25/10) = 4,28 + 9/7 x (-5/2) =
= 4,28 – 45/14 = 4,28 – 3,21 ≈ 1,06