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1) [tex] 7 \frac{4}{21} + 2 \frac{1}{6} [/tex]
2) [tex] 3 \frac{5}{36} - 1 \frac{19}{45} [/tex]
1) [tex] 7 \frac{4}{21} + 2 \frac{1}{6} [/tex]
2) [tex] 3 \frac{5}{36} - 1 \frac{19}{45} [/tex]
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Ответ:
Пошаговое объяснение:
1) 7 4/21 + 2 1/6
7 8/42 + 2 7/42 = 9 15/42 = 9 5/14
Ответ: 9 5/14
2) 3 5/36 - 1 19/45
3 25/180 - 1 76/180 = 2 205/180 - 1 76/180 = 1 129/180 = 1 43/60
Ответ: 1 43/60