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a fost răspuns

va rog ajutatima,
rezolva fractia:
(-6/5+3/4-2+9/20)
(-5/2+1/10)+5/11
(-4/5+7/4+3/20)-5
va rog este foarte urgent

Răspuns :

Renatemambouko
(-6/5+3/4-2+9/20)=(-6×4+3×5-2×20+9)/20=(-24+15-40+9)/20=-40/20=-2

(-5/2+1/10)+5/11=(-5×5+1)/10+5/11=(-25+1)/10+5/11=-24/10+5/11=
=(-24×11+5×10)/110=(-264+50)/110=-214/110

(-4/5+7/4+3/20)-5=(-4×4+7×5+3)/20-5=
=(-16+35+3)/20-5=22/20-5=(22-5×20)/20=(22-100)/20=-78/20=-39/10











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