17/12 x 3/5 = ? 3x1/2x9 + 28x5/3x14 = ? 8+2/7+2 x 3x6/5x3 = ? 3/4 x 2/9 + 28/15 x 25/14;
Mathématiques
greger899
Question
17/12 x 3/5 = ?
3x1/2x9 + 28x5/3x14 = ?
8+2/7+2 x 3x6/5x3 = ?
3/4 x 2/9 + 28/15 x 25/14;
3x1/2x9 + 28x5/3x14 = ?
8+2/7+2 x 3x6/5x3 = ?
3/4 x 2/9 + 28/15 x 25/14;
2 Réponse
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1. Réponse Evolife
(17/12)x(3/5) = 0.85
(3/(2x9))+((28x5)/(3x14)) = 3.5
(8+(2/7)+2)x((3x6)/(5x3)) ≈ 12.34
((3/4)x(2/9))+((28/15)x(25/14)) = 3.5 -
2. Réponse peg05
* 17/12 X 3/5 = 51/60 = 17/30
* 3 X 1/2 X 9 +28 X 5/3 X 14= 27/2 + 1960/3 =
81/6+3920/6=4001/6
* 8 + 2/7 + 2 X 3 X 6/5 X 3 =
56 /7 +2/7 X 6 X 18/15=
348/7 X 18/15 = 6264 / 105 = 2088/35
* 3/4 X 2/9 +28/15 X 25/14=
6/36 + 700/210 =
2/12 + 3/10 =
2/12+40/12 = 42/12 =21/6 = 7/2=3,5