(1 1/3×4 2/7)×21/46=2 14/23
1) 1 1/3×4 2/7=4/3×30/7=40/7=5 5/7
2) 40/7×21/46=60/23=2 14/23
ответ:2 14/23
(1 1/3×4 2/7)×21/46=2 14/23
1) 1 1/3×4 2/7=4/3×30/7=40/7=5 5/7
2) 40/7×21/46=60/23=2 14/23
ответ:2 14/23