Question

Foarte urgent, el se rezolva prin operatii ​

Answer 1

Răspuns:

a) 9

b) 2,5

c) 8,25

d) 5,773

Explicație pas cu pas:

a)45/7:5/7=45/7×7/5=9

b) 15/8:(3/2-3/4)=15/8:(12/8-6/8)=15/8:6/8=15/8:3/4=

15/8×4/3=5/2=2,5

c)12-18/5:24/25=12-18/5×25/24=12-3×5/4=12-15/4=12-3,75=8,25

d)21/11×22/7-5/22=6-5/22=6-0,227=5,773