2 целых 1/3 = (2·3+1)/3 = 7/3
5 целых 1/4 = (5·4+1)/4 = 21/4
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2 1/3 : 5 1/4 = 7/3 : 21/4 = 7/3 · 4/21 = (1·4)/(3·3) = 4/9
ответ: 4/9.
2 целых 1/3 = (2·3+1)/3 = 7/3
5 целых 1/4 = (5·4+1)/4 = 21/4
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2 1/3 : 5 1/4 = 7/3 : 21/4 = 7/3 · 4/21 = (1·4)/(3·3) = 4/9
ответ: 4/9.