8,8×2 3/16 8 8/10×2 3/16 88/10×35/16 11/2×7/2 77/4
-------------- = -------------------- = -------------------=--------------- = ---------- =
0,35×1,1 35/100×1 1/10 35/100×11/10 7/100×11/2 77/200
=77/4÷77/200=77/4×200/77=1/1×50/1=50
3 6/7×2,1 27/7×21/10 27/1×3/10 81/10
-------------- = ------------------- = -----------------= ------------=81/10÷243/10=
0,9×2,7 9/10×27/10 243/10 243/10
=81/10×10/243=1/1×1/3=1/3