1) 3 3/7×3 1/2 (1 1/11- 27/55) 2) (2 1/2: 10+ - вопрос №780406213373121111275522121010212216361253 от Mаjоr 12.03.2020 15:22

Question

Математика: 1) 3 3/7×3 1/2 (1 1/11- 27/55) 2) (2 1/2: 10+ 10: 2 1/2 -2 1/6)× 36/125 3) 3 1/8 : ((4 5/12- 3 13/14) × 4/7+( 3 1/18- 2 7/12)× 1 10/17)

Mаjоr · Answer

1) =24/7 ·7/2·(12/11-27/55)=12·3/5=36/5=7  1/52) =(5/2·1/10+10/1·2/5-13/6)·36/125=(1/4+4/1-13/6)·36/125=15/12·36/125=9/253)=25/8÷(41/21·1/7)+3/4)=25/8÷605/588=147/50=2    47/50...