ПОМОГИТЕ С ДЗ ПО МАТЕШЕ
(3/8-1/20)+7/40
8/9-(1/10+2/5)
По дате
По Рейтингу
1) (3/8-1/20)+7/40=(15/40-2/40)+7/40=13/40+7/40=20/40 =1/2
(3/8-1/20)+7/40=1/2
1) 3/8 - 1/20 = 15/40 - 2/40 = 13/40
2) 13/40 + 7/40 = 20/40 = 1/2
8/9-(1/10+2/5)=7/18
1) 1/10 + 2/5 = 1/10 + 4/10 = 5/10 = 1/2
2) 8/9 - 1/2 = 16/18 - 9/18 = 7/18
Больше по теме
