Bonsoir,
3/5 + 3/4 + 1/10 + 1/10 =
12/20+ 15/20+2/20+2/20= 21/20
2L =20/20*2 = 40/20
40/20 - 21/20 = 19/20 de vide
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Bonsoir,
3/5 + 3/4 + 1/10 + 1/10 =
12/20+ 15/20+2/20+2/20= 21/20
2L =20/20*2 = 40/20
40/20 - 21/20 = 19/20 de vide