1) (3/4+1/5)×5/192) (12 1/3 - 7 3/4)×6/113)(2 3/5 - 5/8):19 3/4. Created by dara5555. matematika-ru

4...

ГородскаяОхотница 1) (3/4 + 1/5) * 5/19 = (15/20 + 4/20) * 5/19 = 19/20 * 5/19 = 5/20 = 1/4 = 0,25; 2) (12 1/3 - 7 3/4) * 6/11 = (12 4/12 - 7 9/12) * 6/11 = (11 16/12 - 7 9/12) * 6/11 = 4 7/12 * 6/11 = 55/12 * 6/11 = 5/2 = 2,5; 3) (2 3/5 - 5/8) : 19 3/4 = (2 24/40 - 25/40) : 19 3/4 = (1 64/40 - 25/40) : 19 3/4 = 1 39/40 : 19 3/4 = 79/40 : 79/4 = 79/40 * 4/79 = 1/10 = 0,1.

2 votes Thanks 3

dara5555 спс

lorik05031979 1) (3/4+1/5)х5/19=1 1/4
   3/4+1/5=15/20+4/20=19/20
   19/20х5/9=19/4х5/19=5/4=1 1/4
2) (12 1/3-7 3/4)х6/11=2 1/2
   12 1/3-7 3/4=5 1/3-3/4=16/3-3/4=64/12-9/12=55/12
   55/12х6/11=5/2=2 1/2
3) (2 3/5-5/8):19 3/4=1/10
   2 3/5-5/8=13/5-5/8=104/40-25/40=79/40
   79/40:19 3/4=79/40:79/4=79/40х4/79=1/10

1 votes Thanks 2

dara5555 спс

Answers & Comments

chto nuzhno delat chtoby izuchit botanikuproshu oooochen nuuuzhzhno

turister ormana otstik shyys baytynda kirdi endi olar ormannan aj baytta

polzuyas slovarem inostrannyh slov opredelite iz kakogo yazyka prishlo slovo poe

sochinenie na temu russkij yazyk v mnogonacionalnoj kazahstanepliizzznuzhno na za

pomogite pozhalujstaobyasnite znachenie poslovic na kazahskom yazyke dam luchsh

proshu nuzhno na zavtra

pochemu poslanie prezidenta nashej respubliki yavlyayutsya cennymi dokumentami

reshite nomer 41 i 42

рекомендуемые вопросы

Helpful Links

Helpful Social