Question

выполните действия 4 2/3 - 5/9 * 2 4/7

Answer 1

4 2/3 - 5/9 • 2 4/7 =
= 14/3 - 5/9 • 18/7
= 14/3 - (5•18)/(9•7) =
= 14/3 - (5•2)/7 =
= 14/3 - 10/7 =
= 98/21 - 30/21 = 68/21 = 3 5/21