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Calculați: 11/15+7/10-4/5+1/2
va rog urgent ​


Calculați 11157104512va Rog Urgent class=

Răspuns :

Răspuns:

11/25 + 7/10 - 4/5 + 1/2

= 11×2/25×2 + 7×5/10×5 - 4×10/5×10 + 1×25/2×25

= 22/50 + 35/50 - 40/50 + 25/50

= 22+35-40+25/50

= 42/50⁽²

= 21/25