31/2: 2 1/3; 2 5/8: 1 3/4; 5 1/9: 7 2/3; 10 4/5: - вопрос №829639231221325813451972310455255612331747 от al170a 21.11.2022 00:52

Question

Математика: 31/2: 2 1/3; 2 5/8: 1 3/4; 5 1/9: 7 2/3; 10 4/5: 5 2/5 5/6: 1 2/3; 3 1/7: 4/7; 15/38: 1 1/19; 7 1/2: 3/4

al170a · Answer

1) 3 1/2:2 1/3=7/2:7/3=3/2= 1 1/2
2) 2 5/8:1 3/4=21/8:7/3=9/8=1 1/8
3) 5 1/9:7 2/3=46/9:23/3=46×3:9×23=2/3
4) 10 4/5:5 2/5=54/5:27/5=54×5:5×27=2
5) 5/6:1 2/3=5/6:5/3=5×3:6×5=1/2
6) 3 1/7:4/7=22/7:4/7=22×7:7×4=11/2=5 1/2
7) 15/38:1 1/19=15/38:20/19=15×19:38×20=3/8
8) 7 1/2:3/4=15/2:3/4=15×4:2×3=10