N 1
1)
1/3 = 3/5
5/15 ≠ 9/15
2)
1/3 = 2/5
5/15 ≠ 6/15
3)
1/3 = 3/9
1/3 = 1/3
4)
1/3 = 4/15
5/15 ≠ 4/15
ОТВЕТ верное неравенство под цифрой 3) 1/3 = 3/9
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N 2
1) 35/50 = 7/10
2) 14/16 = 7/8
3) 3/13
4) 18/27 = 2/3
ОТВЕТ несократимая дробь под цифрой 3) 3/13
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N 3
1)
3/4 и 4/5
3/4 = 15/20
4/5 = 16/20
3/4 < 4/5
2)
7/18 и 8/27
7/18 = 21/54
8/27 = 16/54
7/18 > 8/27
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N 4
1) 3/4 - 2/3 + 5/6 = 9/12 - 8/12 + 10/12 = 11/12
2) 19/42 - ( 5/42 + 1/5 ) = 19/42 - 5/42 - 1/5 = 14/42 - 1/5 = 1/3 - 1/5 = 5/15 - 3/15 = 2/15