4 8/3=4 +(3/3+3/3+2/3) =4+1+1+2/3=6 2/3 (8 разложили на слагаемые 3+3+2)
15 12/7=15 (7+5)/7=15+7/7+5/7=15+1+5/7=16 5/7
8 25/4=8+(24+1)/4=8+24/4+1/4=8+6+1/4=14 1/4
.
2 5/9=2+5/9=1 +1 +5/9=1+9/9+5/9=1 14/9
7 13/15=7+13/15=6+1+13/15=6+15/15+13/15=6+28/15=6 28/15
1 8/9=1+8/9=9/9+8/9=17/9
4 8/3=4 +(3/3+3/3+2/3) =4+1+1+2/3=6 2/3 (8 разложили на слагаемые 3+3+2)
15 12/7=15 (7+5)/7=15+7/7+5/7=15+1+5/7=16 5/7
8 25/4=8+(24+1)/4=8+24/4+1/4=8+6+1/4=14 1/4
.
.
2 5/9=2+5/9=1 +1 +5/9=1+9/9+5/9=1 14/9
7 13/15=7+13/15=6+1+13/15=6+15/15+13/15=6+28/15=6 28/15
1 8/9=1+8/9=9/9+8/9=17/9