пожалуйста помогите!!!!!!
вычислите
13 3/7- 4 2/7=
7 11/22-5 17/22=
9 11/15-4 14/15=
10 7/12-8 11/12=
вычислите
13 3/7- 4 2/7=
7 11/22-5 17/22=
9 11/15-4 14/15=
10 7/12-8 11/12=
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Answers & Comments
2) 64/72-63/72=1/72
3) 13/15-10/15=3/15=1/5
4) 20/21+9/21=29/21=1(8/21)
5) 34/36-33/36=1/36
6) 21/48+8/48=29/48
7) 8/36+30/36=38/36=1(2/36)=1(1/18)
8) 20/42+27/42=47/42=1(5/42)
9)35/45-12/45=23/45
10)18/28-12/28+15/28=21/28
11) 4/24+6/24-3/24=7/24