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(1 pe+0,75)*(2+3pe4) trag o line lunga sub numerele scrise de mine 2pe5:(0,8+0,8*1pe3)

Răspuns :

[(1/0,75)×(2+3/4)]/(2/5 : 0,8+0,8×1/3)=
=[(100/75)×11/4)]/(2/5 : 8/10+8/10×1/3)=
=(4/3×11/4)/(2/5 ×5/4+4/5×1/3)=
=(11/3)/(1/2+4/15)=
=(11/3)/(15+8)/30=
=(11/3)/30/23=
=110/23