1.
1) 5.1+4.7=9.8
2) 0.7-9.8=-9.1
2.
1) 8/5-2/5=6/5
2) -2/5-6/5=-8/5
3.
1) -1/3-1/2=-5/6
2) 12/7+5/6=107/42
1.
1) 5.1+4.7=9.8
2) 0.7-9.8=-9.1
2.
1) 8/5-2/5=6/5
2) -2/5-6/5=-8/5
3.
1) -1/3-1/2=-5/6
2) 12/7+5/6=107/42