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dau coroanaaa urgent​

Dau Coroanaaa Urgent class=

Răspuns :

Răspuns:

a) 2/3+1/2=

numitorul comun 6

4+3/6=7/6

b) 2-1/3-(1/2-3/8)

=2-1/3-(4-3/8)

=2-1/3-1/8

=48-8-3/24=37/24

c) 7/3×9/14=63/42

d)7/9:7/3=7/9×3/7=21/63