Question

efectuează calaculele​

Answer 1

Răspuns:

a)

$\frac{19}{12} \times \frac{24}{19} - \frac{1}{2} \times \frac{4}{3} = 2 - \frac{2}{3} = \frac{4}{3}$

c)

$\frac{41}{24} \times \frac{18}{41} + \frac{4}{25} \times \frac{1}{8} = \frac{1}{4} \times 3 + \frac{1}{25} \times \frac{1}{2} = \frac{3}{4} + \frac{1}{50} = \frac{77}{100}$

Answer 2

a)

(10/12 + 9/12) • 24/19 - (4/6 - 1/6) • 4/3 =

= 19/12 • 24/19 - 3/6 • 4/3

= 2/1 - 2/3

= 6/3 - 2/3

= 4/3

c)

(20/24 + 21/24) • 18/41 + 1/4 • 16/25 • (6/8-4/8-1/8) =

= 41/24 • 18/41 + 4/25 • 1/8

= 3/4 + 1/50

= 75/100 + 2/100

= 77/100