4/13=4:13, 47/80=47:80, 5/21=5:21, 12/89=12:89.
43:50=43/50, 7:15=7/15, 2:13=2/13, 37:100=37/100.
Ответ:
4/13=4÷13 43÷50=43/50
47/80=47÷80 2÷13=2/13
5/21=5÷21 7÷15=7/15
12/89=12÷89 37÷100=37/100
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Answers & Comments
4/13=4:13, 47/80=47:80, 5/21=5:21, 12/89=12:89.
43:50=43/50, 7:15=7/15, 2:13=2/13, 37:100=37/100.
Ответ:
4/13=4÷13 43÷50=43/50
47/80=47÷80 2÷13=2/13
5/21=5÷21 7÷15=7/15
12/89=12÷89 37÷100=37/100