1/2+0,308 = 0,5+0,308 = 0,808
2,71-2/5 = 2,71 - 4/10 = 2,71-0,4 = 2,31
1/4·0,4 = 0,25·0,4 = 0,1
2/7·0,3 = 2/7·3/10 = 3/35
1 3/4:0,1 = 1,75÷0,1 = 17,5
0,6:3/4 = 0,6÷0,75 = 0,8
1 1/4·1 3/5-(0,6-0,55) = 1,25·1,6 - 0,05 = 2-0,05 = 1,95
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1/2+0,308 = 0,5+0,308 = 0,808
2,71-2/5 = 2,71 - 4/10 = 2,71-0,4 = 2,31
1/4·0,4 = 0,25·0,4 = 0,1
2/7·0,3 = 2/7·3/10 = 3/35
1 3/4:0,1 = 1,75÷0,1 = 17,5
0,6:3/4 = 0,6÷0,75 = 0,8
1 1/4·1 3/5-(0,6-0,55) = 1,25·1,6 - 0,05 = 2-0,05 = 1,95