1. 187/510 привести к общему знаменателю и сократить.
2. 39/40 и 40/41 сравнить.
3. 10/21+3/7. И 21/20-7/30 .
4. 12/25+4/15.
2. 39/40 и 40/41 сравнить.
3. 10/21+3/7. И 21/20-7/30 .
4. 12/25+4/15.
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Answers & Comments
2)39/40 и 40/41 = 1599/1640<1600/1640
3)10/21+3/7 И 21/20-7/30 =19/21 и 43/60=380/420>301/420
4)12/25+4/15=144/300+80/300=224/300=56/75