Выполните деление 3/8:15, 7/9:14/15, 1 1/5:2 7/10.
3/8:15=3/8*1/15=3/120=1/40 7/9:14/15=7/9*15/14=105/126 11/5:2 7/10=11/5:27/10=11/5*10/27=22/27
3/8 × 1/15=1/40 7/9×15/14=15/18 1/5×10/27=1/54