Question

алгебра(7 примеров) подробное решение ​

Answer 1

5,3-3,8=1,5
14,6-6,4=8,2
8,19-15,6=-7,41

Answer 2

Ответ:

Пошаговое объяснение:

$-3,8+5,3=-\frac{38}{10} +\frac{53}{10} =\frac{15}{10} =\frac{3}{2} =1\frac{1}{2} =1,5$

$14,6+(-6,4)=14,6-6,4=\frac{146}{10} -\frac{64}{10} =\frac{82}{10} =\frac{41}{5} =8\frac{1}{5} =8,2$

$8,19+(-15,6)=8,19-15,6=\frac{819}{100} -\frac{156}{10} =\frac{819}{100}-\frac{1560}{100} = -\frac{741}{100} =-7,41$

$3,6-8,7=\frac{36}{10} -\frac{87}{10} =-\frac{51}{10} =-5\frac{1}{10} =-5,1$

$16,8-(-2,6)=16,8+2,6=\frac{168}{10} +\frac{26}{10} =\frac{194}{10} =\frac{97}{5} =19\frac{2}{5} =19,4$

$-17,9-10,1=-\frac{179}{10} -\frac{101}{10} =-\frac{280}{10} =-\frac{28}{1} =-28$

$-4,8-(-14,13)=-4,8+14,13=-\frac{48}{10} +\frac{1413}{100} =-\frac{480}{100}+\frac{1413}{100} = \frac{933}{100} =9\frac{33}{100}=9,33$