Ответ:
2/9×(3/10×7/8)=7/120
Так.
1) 3/10 × 7/8 = 21/80
2) 2/9 ×21/80 = 7/120
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Ответ:
2/9×(3/10×7/8)=7/120
Так.
1) 3/10 × 7/8 = 21/80
2) 2/9 ×21/80 = 7/120