Question

repede vă rog dau coroană​

Answer 1

a) 1,4 = 14/10 = 7/5

-28/5 + 7/5 = -21/5

b) 1 1/6 = (1*6+1)/6 = 7/6

7/6 * (-3/14) = -1/2*2 = -1/4

c) -16/27 : 4/9 = -16/27 * 9/4 = -4/3

d) -16,72 = -1672/100

-7,28 = -728/100

7/24 * (-1672/100) + 7/24 * (-728/100) = 7/24(-1672/100 -728/1000 = 7/24(-2400/100) = 7/24 * -24 = -7