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