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BYANCAK
a fost răspuns

calculati :
a) 15/7•1/18
b)1/9•3/10
c)4/5•9/8
d)7/8•2/31
e)9/43•5/21
f)7/45•15/28
g)7/23•11/9
h)1/14•49/26

Răspuns :

Bibi2350
a)15/7•1/18 simplificam 5/7•1/6=5/42
b)1/9•3/10 simplificam 1/3•1/10=1/30
c)4/5•9/8 simplificam 1/5•9/2=9/10
d)7/8•2/31 simplificam 7/4•1/31 =7/124
e)9/43•5/21 simplificam 3/43•5/7=14/301
f)7/45•15/28 simplificam 1/3•1/4=1/12
g)7/23•11/9 =77/207
h)1/14•49/26 simplificam 1/2•7/26=7/52

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