0,72 = 72/100 = 18/255.083 = 5 83/1000-2,2 = -2 2/10 = -2 1/5
1/8 = 0,1252/4 = 2/43 ≈ 0.0465-7/25 = -0.28
3/7 + 0,82 = 3/7 + 82/100 = (300/700) + (574/700) = 874/700 = 1.24862/9 0.53 = 2/9 53/100 = 106/900 = 0.11771/8 - 1.64 = 1/8 - 164/100 = -163/100 ≈ -1.634.5 ÷ 9/2 = 4.5 2/9 = 9/2 = 4.5 2/9 = 1.0
0,72 = 72/100 = 18/25
5.083 = 5 83/1000
-2,2 = -2 2/10 = -2 1/5
1/8 = 0,125
2/4 = 2/43 ≈ 0.0465
-7/25 = -0.28
3/7 + 0,82 = 3/7 + 82/100 = (300/700) + (574/700) = 874/700 = 1.2486
2/9 0.53 = 2/9 53/100 = 106/900 = 0.1177
1/8 - 1.64 = 1/8 - 164/100 = -163/100 ≈ -1.63
4.5 ÷ 9/2 = 4.5 2/9 = 9/2 = 4.5 2/9 = 1.0