25/28 - 18/35 = ?
40/63 - 35/72 = ?
22/21 - 21/22 = ?
40/143 - 41/156 = ?
43/126 - 41/135 = ?
239/240 - 229/288 = ?
40/63 - 35/72 = ?
22/21 - 21/22 = ?
40/143 - 41/156 = ?
43/126 - 41/135 = ?
239/240 - 229/288 = ?
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б)25/168
в)43/462
г)1229/1716
д)71/1890
е)289/1440
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