Question

помогите дроби обыкновеные

Answer 1

Здравствуй!

Номер 640.

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

2.
$3 frac{1}{5} times frac{5}{8} div frac{2}{7} = frac{16 times 5 times 7}{5 times 8 times 2} = 7$

3.
$4 frac{1}{8} times frac{6}{11} div 2 frac{1}{4} = frac{33 times 6 times4 }{8 times 11 times 9} = 1$

Удачи в учебе!

Answer 2

1
7/2*3/2*1/5=21/20=1 1/20

2
16/5*5/8*7/2=2*7/2=7

3
33/8*6/11:9/4=3/8*6*4/9=3/2*2*1/3=1