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calculer et donner le resulta sous la forme d'une fraction la plus simple possible
a)15/18X9/25
b)1,8X10/9
c)24/49X7/8
d)55X4/33
e)56/65X35/48
f)26/34X54/39
MERCIIIIII
calculer et donner le resulta sous la forme d'une fraction la plus simple possible
a)15/18X9/25
b)1,8X10/9
c)24/49X7/8
d)55X4/33
e)56/65X35/48
f)26/34X54/39
MERCIIIIII
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=135/450
= 9*45/ 10*45
= 9/10
b)1,8X10/9
=18/9
= 2
c)24/49X7/8
=168/432
=21*8/54*8
= 21/54
=7*3/18*3
=7/18
d)55X4/33
=220/33
20*11/3*11
20/3
e)56/65X35/48
8*7/13*5 x 7*5/8*6
= 7/13x7/6
= 49/78
f)26/34X54/39
13*2/17*2 x 27*2/13*3 = 54/51