Question

а)2/3-1/5; б)1 целая 1/5-3/4

Answer 1

а) 2/3-1/5=7/15
б)1 1/5-3/4=9/20

Answer 2

1)2/3-1/5=6/15-3/15=3/15
2)1цел.1/5-34=1цел.4/20--15/20=24/20-15/20=9/20