(5/6-3/10):(3/10+2/5)=
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Ответил sundetamanjol
0
1) 5/6 - 3/10 = 25/30 - 9/30 = 16/30 = 8/15
2) 3/10 + 2/5 = 3/10 + 4/10 = 7/10
3) 8/15 / 7/10 = = 8/15 * 10/7 = 16/21
2) 3/10 + 2/5 = 3/10 + 4/10 = 7/10
3) 8/15 / 7/10 = = 8/15 * 10/7 = 16/21
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