Question

4,5 : 250% + (69 per 10 - 18 per 20) =....

bantu yaa

Answer 1

45/10: 250/100 + (138/20 - 18/20) =
45/10 x 100/250 + 120/20 =
9/5 + 6 =
9/5 + 30/5 = 39/5 atau 7,8

Answer 2

45/10 : 250 /100 +( 69/10 - 18/20)
= 45/10 kali 100/250 + ( 138/20-18/20)
= 450/250 + ( 120/20)
= 900/500 + 3000/500
=3900/500
=39/5
=pecahan campuran 7 4/5
= 7,8