18 лет 9 месяцев:9    

помогитеееееееее!

18лет9мес/9=(18*12+9)/9=2*12+1=25мес=2года 1мес

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18 лет 9 мес / 9 = (18*12+9) / 9 = 2*12+1 = 25 мес=2(года) 1(месяц)!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!