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(2ori 1 supra 10-6 supra5):3 supra 25=

Răspuns :

(2x1/10-6/5)x25/3=
(1/5-6/5)x25/3=
(-1)x25/3=(-25/3)

(2*1/10-6/5):3/25= (2/4/5)*25/3=(2/1*5/4)*3/25=5/2*3/25=125/6