Question

Ребята Даю 89 балл если полный ответ это книга Математика 5 класс нужна помощь вот 5) 2/3:10 6) 4/5:8 7) 5/6:10 8) 3/7:12 9) 4:2/5 10) 21:7/8 11) 25:5/8 12) 8:16/21 13) 1/8:3/4 14) 1/2:9 15) 2/5:7 16) 3/4:9/16

Answer 1

2/3:10=2/3*1/10=1/15
4/5:8=4/5*1/8=1/10
5/6:10=5/6*1/10=1/12
3/7:12=3/7*1/12=1/28
4:2/5=4*5/2=10
21:7/8=21*8/7=24
25:5/8=25*8/5=40
8:16/21=8*21/16=21/2=10 1/2=10,5
1/8:3/4=1/8*4/3=1/6
1/2:9=1/2*1/9=1/18
2/5:7=2/5*1/7=2/35
3/4:9/16=3/4*16/9=4/3=1 1/3

Answer 2

мм дада я добавил друзья поможешь у меня чуть осталось задание

Answer 3

молодец!

Answer 4

прости

Answer 5

где сокращения,

Answer 6

вв

Answer 7

$5) frac{2}{3} div 10 = frac{2}{3} div frac{10}{1} = frac{2}{3} times frac{1}{10} = frac{2 times 1}{3 times 10} = frac{1 times 1}{3 times 5} = frac{1}{15}$


$6) frac{4}{5} div 8 = frac{4}{5} times frac{1}{8} = frac{4 times 1}{5 times 8} = frac{1 times 1}{5 times 2} = frac{1}{10}$


$7) frac{5}{6} div 10 = frac{5}{6} times frac{1}{10} = frac{5 times 1}{6 times 10} = frac{1 times 1}{6 times 2} = frac{1}{12}$


$8) frac{3}{7} div 12 = frac{3}{7} times frac{1}{12} = frac{3 times 1}{7 times 12} = frac{1 times 1}{7 times 4} = frac{1}{28}$


$9) 4 div frac{2}{5} = frac{4}{1} times frac{5}{2} = frac{4 times 5}{1 times 2} = frac{2 times 5}{1 times 1} = frac{10}{1} = 10$


$10)21 div frac{7}{8} = frac{21}{1} times frac{8}{7} = frac{21 times 8}{1 times 7} = frac{3 times 8}{1 times 1} = frac{24}{1} = 24$


$11)25 div frac{5}{8} = frac{25}{1} times frac{8}{5} = frac{25 times 8}{1 times 5} = frac{5 times 8}{1 times 1} = frac{40}{1} = 40$


$12)8 div frac{16}{21} = frac{8}{1} times frac{21}{16} = frac{8 times 21}{1 times 16} = frac{1 times 21}{1 times 2} = frac{21}{2} = 10 frac{1}{2} = 10.5$


$13) frac{1}{8} div frac{3}{4} = frac{1}{8} times frac{4}{3} = frac{1 times 4}{8 times 3} = frac{1 times 1}{2 times 3} = frac{1}{6}$


$14) frac{1}{2} div 9 = frac{1}{2} times frac{1}{9} = frac{1 times 1}{2 times 9} = frac{1}{18}$


$15) frac{2}{5} div 7 = frac{2}{5} times frac{1}{7} = frac{2 times 1}{5 times 7} = frac{2}{35}$


$16) frac{3}{4} div frac{9}{16} = frac{3}{4} times frac{16}{9} = frac{3 times 16}{4 times 9} = frac{1 times 4}{1 times 3} = frac{4}{3} = 1 frac{1}{3}$