Question

1 3/4 - а равно 2 7 10​

Answer 1

✔ответ ✔

●: $1\frac{3}{4} - a = 2\frac{7}{10}$

$\frac{7}{4} - a = \frac{27}{10}$

$- a = \frac{27}{10} - \frac{7}{4}$

$-a = \frac{19}{20}$

$a = - \frac{19}{20}$