1) 4/15=8/30, 9/10=27/30, значит 4/15<11/30<9/10
2) 13/72=26/144, 5/12=60/144. значит 13/72<43/144<5/12
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Answers & Comments
1) 4/15=8/30, 9/10=27/30, значит 4/15<11/30<9/10
2) 13/72=26/144, 5/12=60/144. значит 13/72<43/144<5/12