Вычислите : 1.) 5 1/7 * (3 1/2 - 6 2/9)

Question

Вычислите :
1.) 5 1/7 * (3 1/2 - 6 2/9)

Answer 1

5 1/7 * (3 1/2 - 6 2/9) = 36/7 * ( 7/2 - 56/9 ) = 36/7 * ( 63/18 - 112/18 ) = 36/7 * ( -49/18 ) = -2/7