Question

Tolong jawabkan 1-4 yah!!!!

Answer 1

1.) 1/2 + 3/4 = 2/4 + 3/4 = 5/4 kg = 1,25 kg
2.) 7 X 4,2 =  X 
= 
= 651/20
= 32,55
3.) 25  - 22 = 103/4 - 397/18
= 927/36 - 794/36
= 133/36
= 3  = 3,694
4.) 1- 0,3 = 10/10 - 3/10 = 7/10 = 0,7