3/4*1/9+1/4*1/9 2.5/8*2/7+5/8*5/7 3.101*1/5-1/5*21 4.31*5*6-5/6 5.8*4/5+8*11/5 6.6*(1/2+2/3) 7.(3/5-1*2)*5/3 8.12*(2*3+1/6) 9.4/7*5/9+3/7*5/9 10.(3+1)*5/6 11.5/2*(3/2+4/5) 12.1/6*(2/3+3/4) 13.7/72*(1/8+1/9) 14.9*5/6+5/6 15.12*5/6-5/6*3 16.21/22*(2/7+10/21) 17.45*2/3+1/3*45 18.1/5*2/3+4/3*1/5 19.9/11*(11/18+11/20) 20.2/5*(5/9+5/7) 21.1/3*(5*(2/3)) 22.(1+37%)*20 23.35/2*75% 24.30*(50/2) 25.(54+10%)/20 26.(25/3*18)*30% 27.(2+70%)*40 28.1/7*(98*(1/4)*2) 29.25%*((23+2%)*4) 30.(30+20%)/2 31.12*3/(25+20%) 32.30/(3+40%) 33.27/8*16*10% 34.(2/3)*(3+6)*(1/2) 35.45*(1/9)*24 36.(35+10%)*27 37.(45+50%)*3*1/2 38.(43*20%)+(3*(1/9)) 39.27*(9*(1/3))*5% 40.14*15%+25*8*(1/4) 41.7*(1/2)/49 42.(1+48%)*2 43.(4*8-12)*50% 44.(48/60%)/10 45.63*(1/7)*30% 46.8/9 × 15/36 + 1/27 47.12× 5/6 – 2/9 ×3 48.8× 5/4 + 1/4 49.6÷ 3/8 – 3/8 ÷6 50.4/7 × 5/9 + 3/7 × 5/9 51.5/2 -（ 3/2 + 4/5 ） 52.7/8 + （ 1/8 + 1/9 ） 53.9 × 5/6 + 5/6 54.3/4 × 8/9 - 1/3 55.7 × 5/49 + 3/14 56.6 ×（ 1/2 + 2/3 ） 57.8 × 4/5 + 8 × 11/5 58 .31 × 5/6 – 5/6 59.9/7 - （ 2/7 – 10/21 ） 60.5/9 × 18 – 14 × 2/7 61.4/5 × 25/16 + 2/3 × 3/4 62.14 × 8/7 – 5/6 × 12/15 63.17/32 – 3/4 × 9/24 64.3 × 2/9 + 1/3 65.5/7 × 3/25 + 3/7 66.3/14 ×× 2/3 + 1/6 67.1/5 × 2/3 + 5/6 68.9/22 + 1/11 ÷ 1/2 69.5/3 × 11/5 + 4/3 70.45 × 2/3 + 1/3 × 15