Срочно 3/5 : 11/5
21/22 * 2/5
7/8 : 7/16
1 целое 3/5 * 2 целых 1/2
1 целое 3/4 : 10 целых 1/2
21/22 * 2/5
7/8 : 7/16
1 целое 3/5 * 2 целых 1/2
1 целое 3/4 : 10 целых 1/2
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Answers & Comments
21/22*2/5=21/110*2/110=42/110=21/55
7/8:7/16=7/8*16/7=14/7=2
1 цел.3/5* 2цел.1/2=8/5*5/2=8/10*5/10=40/10=4
1цел 3/4:10цел.1/2=7/4:21/2=7/4*2/21=3/6=1/2