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Calculati:
e)9/43x5/21
f)7/45x15/28
g)7/23x11/9
h)1/14x49/26


Răspuns :

e)9/43x5/21=3/43x5/7=15/301

f)7/45x15/28=
7/3x1/283=7/849

g)7/23x11/9=
77/207

h)1/14x49/26 =
1/2x7/26 =7/52