6--x
1-200000
6 x
____=________
1 200000
х=200000×6
х=1200000
8 3/7-2 2/7 = 6 1/7
20 11/13-9 2/13 = 11 9/13
10 5/17-4 3/17 = 6 2/17
19 20/29-1 17/29 = 18 3/29
83 63/101-19 24/101 = 64 39/101
Например, а=4, в=7, с=6
сумма: а+с= 4+6= 10
произведение:а*в*с= 4*7*6= 168
Делам 2 яблока на 3 части, и три яблока на 2части
360/840 = 36/84 = 18/42= 9/21= 3/7
256/640 = 128/320 = 64/160= 32/80= 16/40 = 2/5