3/4×8×25= 24×21/23= 9/13×5/6×13/15= 43×5/11+5/11=
4/11×5/6+7/11×5/6= (3/4-1/3)×24= (1/5+1/4)×1/9=
17×9/16= (3/4+5/8)×32= 5/9×3/4+5/9×1/4=
5/4×1/8×16= 1/5+2/9×3/10= 44-72×5/12=
7/9×5/11-2/9×5/11= 2009×2007/2008= 4/5-4/5×2/3×0.5=
8/5×(5/8+2/3)= 7/8×5/11×(5/9+2/3)= 5/8×0.25+0.375×1/4=
4×4/5-4/5×4= 23-12/17-5/17= 2.5×76×4=
(3/4+2/5)×20 7.2×1.2= (1/13×1/18)×13×18=
0.25×1.25×320= 6/7-6/7×(2/3+1/9)= 4/3×[3/5+2/5×(1-3/8)]
3/4+2/7+1/4+3/7= 9/20÷[1/2×(2/5+3/4)]= 2.5×12.5×32=
5.5×3.63-4.5×3.63= 10-7/12-5/12= (4/7-3/14)×28=
15×(5/12+1/15)×24= 72×(5/6-5/12)+10= 7/18×5/4+11/18×5/4=