Question

вычислите 3,5*(2$\frac{1}{7}$-1$\frac{1}{5}$)

Answer 1

3,5*(2 ¹/₇ - 1¹/₅) =
=3,5*(¹⁵/₇ - ⁶/₅)=
=35 * (15*5-6*7) =
   10        35
=33 = 3,3
   10