14/15X8 2/25X126 35X11/36 73X74/75 1/17X4/9+5/17X1/9 1/2+1/4+1/8+...1/2562/3+2/9+2/27+2/81+2/243 9.9+99.6+999.6+9999.6+99999.6 6X7/12-9/20X6+11/30X63/2+5/6-7/12+9/20-11/30 5/4-9/20+11/30-13/42+15/56 45X2.08+1.5X37.652X11.1+2.6X778 48X1.08+1.2X56.8 72X2.09-1.8X73.6 6.8X16.8+19.3+3.2
答案 4.4X57.8+45.3+5.6 139X137/138+137X1/138 53.5X35.3+53.5X43.2+78.5X46.2235X12.1+235X42.2-135X54.3