2)5/8-(1/3+1/6) 4)16/21-(1/6+2/7) 6)7/8-(1/4+2/5) - вопрос №3375298258131641621162767814255 от borz2006 06.07.2020 08:02

Question

Математика: 2)5/8-(1/3+1/6) 4)16/21-(1/6+2/7) 6)7/8-(1/4+2/5) сделайте завтра нужно 54 ! 1

borz2006 · Answer

2)5/8-(1/3+1/6)=5/8-((2+1)/6)=5/8-3/6=5/8-1/2=(5-4)/8=1/8; 4)16/21-(1/6+2/7)=16/21-((7+12)/42)=16/21-19/42=(32-19)/42=13/42; 6)7/8-(1/4+2/5)=7/8-((5+8)/20)=7/8-13/20=(14-13)/40=1/40....