2 целых 1/3 = 7/3 (неправильная дробь)
1.8 = 18/10 = 9/5
(7/3) - (9/5) = (35/15) - (27/15) = (35-27) / 15 = 8/15
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2 целых 1/3 = 7/3 (неправильная дробь)
1.8 = 18/10 = 9/5
(7/3) - (9/5) = (35/15) - (27/15) = (35-27) / 15 = 8/15