а) 1/4 4/9 = 4/36 = 1/9б) 1/7 2 1/3 = 1/7 7/3 = 1/3в) 2 2/5 5/6 = 12/5 5/6 = 12/6 = 2г) 1/5+2/151/5 + 2/151/5+2/15 3/4 = 3/15+2/153/15 + 2/153/15+2/15 3/4 = 5/15 3/4 = 1/3 * 3/4 = 1/4
а) 1/4 4/9 = 4/36 = 1/9
б) 1/7 2 1/3 = 1/7 7/3 = 1/3
в) 2 2/5 5/6 = 12/5 5/6 = 12/6 = 2
г) 1/5+2/151/5 + 2/151/5+2/15 3/4 = 3/15+2/153/15 + 2/153/15+2/15 3/4 = 5/15 3/4 = 1/3 * 3/4 = 1/4