1) 2 1/2:0,5+3,6 =5/2:1/2+3,6 =5/2*2+3,6= 5+3,6=8,
2) 61 3/4*0,4+0,3 = 7/4*2/5+0,3= 0,7+0,3=1
3) 7/10:0,2-0,5 = 7/10:1/5 -0,5 = 7/10*5 -0,5 = 7/2-1/2=6/2=3
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Answers & Comments
1) 2 1/2:0,5+3,6 =5/2:1/2+3,6 =5/2*2+3,6= 5+3,6=8,
2) 61 3/4*0,4+0,3 = 7/4*2/5+0,3= 0,7+0,3=1
3) 7/10:0,2-0,5 = 7/10:1/5 -0,5 = 7/10*5 -0,5 = 7/2-1/2=6/2=3