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je cal sur un dm calcul et faire les calculs simplifier 25/490x28/15 2/7 x 14/8 + 1/8 3/8 x (4/9 + 2/5) 26/9 x 1/4 -5/3x1/3 7/80- (41/9 -1/4) + 3/8

Sagot :

FLOWERS

3/5+1/15= 10/15=2/3

25/49*28/15=700/735=20/21

2/7*14/8+1/8=28/56+1/8=5/8  ou 0.5+1/8=5/8

3/8*(4/9+2/3)=12/72+6/24=5/12

24/9*1/4-5/3*1/9= 24/36-5/27=13/27

    ou 2/3 -5/27=13/27

7/8-(41/9-1/4)+3/8=7/8-155/36+3/8

= -55/18