Question

Выполните действия
1)3/7+0,8=
2) 2/9х0,5=
3)3 1/8-1,6=
4)4,5:9/2=

Answer 1

3/7+8/10=30+56/70=86/70
2/9*5/10=5/45=1/9
3 1/8-1 6/10=25/8-60/10=250-480/80=-230/80=-23/8=-2,875
4 5/10:9/2=45/10*2/9=5/5=1