Question

Решите уравнение:

а) Х + 1 7/11 = 2 4/11

б) 2 7/21 + Х = 5 5/21

в) 4 5/14 - (х - 7 3/14) = 2 9/14

г) 3 7/11 - (х + 1 4/11) = 1 9/11

Answer 1

1.  х=2$\frac{4}{11}$-1$\frac{7}{11}$=$\frac{26}{11} -\frac{18}{11}$=$\frac{8}{11}$

2. x=5$\frac{5}{21}-2\frac{7}{21}$=$\frac{110}{21}-\frac{49}{21}$=$\frac{61}{21}$=2$\frac{19}{21}$

3. x=4$\frac{5}{14} - 2\frac{9}{14}$+$\frac{101}{14}$=$\frac{60}{14} - \frac{37}{14} + \frac{101}{14}$=

=$\frac{64}{14}$=4$\frac{8}{14}$=4$\frac{4}{7}$

4. x=3$\frac{7}{11} - 1\frac{9}{11} - 1\frac{4}{11}$=$\frac{40}{11} - \frac{20}{11} - \frac{15}{11}$=$\frac{5}{11}$

Пошаговое объяснение: