5.
9 3/5-6 2/5=3 1/5 осталось
4.
3/8+1/4=3/8+2/8=5/8 за 2 дня
3.
5/12+3/4=5/12+9/12=14/12=7/6=
=1 1/6
3/4-2/5=15/20-8/20=7/20
1 4/7+5 2/3=1 12/21+5 14/21=
=6 26/21=7 5/21
4 3/8-1 1/5=4 15/40-1 8/40=3 7/40
6-5/8=5 3/8
2.
3/7<5/7<br>5/9=10/18 <5/6=15/18<br>7/24 <3/4=18/24<br>
1.
А=3/8
В=7/8
С=1 5/8
Д=2 1/8