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Вычислите:
1) 4/9 + 11/15;
2) 5/6 -3/4;
3) 7/30 + 11/36;
4) 8/11-5/8.
Вычислите:
1) 4/9 + 11/15;
2) 5/6 -3/4;
3) 7/30 + 11/36;
4) 8/11-5/8.
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Answers & Comments
2)5/6-3/4=(10-9)/12=1/12
3)7/30+11/36=(42+55)/180=97/180
4)8/11-5/8=(64-55)/88=9/88