Вычислите -5/16×2 4/5 -2/3×(-1 1/2) 4 3/4×(-7/15) - вопрос №7965178516245231124347152561117137 от guara3 05.07.2021 08:32

Question

Математика: Вычислите -5/16×2 4/5 -2/3×(-1 1/2) 4 3/4×(-7/15) -2 5/6×(-1 1/17) 1 3/7×(-0,7) -1,3×5/13

guara3 · Answer

- 5/16 * 2 4/5= - 5/16 * 14/5= - 14/16= - 7/8

- 2/3 * ( -1 1/2)=2/3 * 3/2=1

4 3/4 * ( -7/15)= - 19/4 * 7/15= - 133/60= - 2 13/60

- 2 5/6 * ( -1 1/17)=17/6 * 18/17=18/6=3

1 3/7 * ( -0,7)= - 10/7 * 7/10= - 1

- 1,3 * 5/13= - 13/10 * 5/13= - 5/10= - 1/2 = - 0,5