Дроби 5/6 + 3/8 19/31 - 11/15 21/22 - 3/55 5/42 - вопрос №5638193111152122355542106311212355247606565928 от annett3453 08.01.2020 17:40

Question

Математика: Дроби 5/6 + 3/8 19/31 - 11/15 21/22 - 3/55 5/42 + 10/63 11/21 - 2/35 5/24 + 7/60

annett3453 · Answer

РЕШАЕМ вместе5/6 + 3/8 = (5*4+3*3)/24 = 29/24 = 1 5/24 НОК=6*8=2419/31 - 11/15 = -56/465 НОК=15*31=46521/22 - 3/55 = (21*5 - 3*2)/110= 99/110 = 9/10  НОК =1105/42 + 10/63 = 5/18 НОК=12611/21 - 2/35 = 7/15 НОК=1055/24 + 7/60 = (5*5+2*7)/120 = 39/120 = 13/40  НОК=120...