Question

508.Предварительно сократив дроби, найдите значение выражения
ПЖПЖПЖП ПОМОГИТЕ СРОЧНО НАДО ПРОШУУУ​

Answer 1

3\12 + 25/30 = 1/6 + 5/6 = 6/6 = 1

10/24 - 21/54 = 5/12 - 7/18 = 15/36 - 14/36 = 1/36

30/54 + 22/30 = 5/9 + 22/30 = 50/90 + 44/90 = 94/90 = 1 4/90 = 1 2/45

28/40 - 10/75 = 7/10 - 2/15 = 21/30 - 4/30 = 17/30

12/27 + 14/21 = 4/9 + 2/3 = 4/9 + 3/9 = 7/9

14/24 - 15/40 = 14/24 - 9/24 = 5/24

12/18 - 3/60 = 2\3 - 1/20 =  40/60 - 3/60 = 37/60

4/24 + 3/36 = 1/6 + 1/12 = 2/12 + 1\12 = 3/12= 1/4