5/10+2/8+3 2/1+5 x 2/4 :1/2

5/10+2/8+3 2/1+5×2/4÷1/2
5/10+1/4+5/1+5/2×2/1
5/10+1/4+5/1+5/1
5/10+1/4+10/1
10/20+5/20+200/20
15/20+200/20
215/20/10 3/4/10,75

Semoga bermanfaat

5/10 + 2/8 +3 2/1 x 2/4 : 1/2
= 5/10 + 2/8 + 5 + 5 x 2/4 x 2
= 5/10 + 2/8 + 5 +5 x 1
= 5/10 + 2/8 + 10
= 20/40 + 10/40 + 10
= 10 30/40 
= 10 3/4 atau 10,75