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4 supra 5= ? supra 10

cat este ?​


Răspuns :

[tex]\frac{4}{5} =\frac{?}{10} \\5?=4*10\\5?=40\\?=\frac{40}{5} =8[/tex]

4/5=x/10

4×10= 5•x

40=5x

x=40:5

x=8