(3/7*5/6)*6/5=5/14*6/5=3/7
7/12*4/21+5/12*4/21=1/9+5/63=4/21
1 5/7*6/17-5/7*6/17=72/119-30/119=6/17
Пошаговое объяснение:
ответ:3/7;4/21;6/17
1.(1/7*5/2)*6/5=5/14*6/5=1/7*3=3/7
2.7/12*4/21+5/12*4/21=1/3*1/3+5/3*1/21=1/9+5/63=4/21
1 5/7*6/17-5/7*6/17=12/7*6/17-30/119=72/119-30/119=6/17
(3/7*5/6)*6/5=5/14*6/5=3/7
7/12*4/21+5/12*4/21=1/9+5/63=4/21
1 5/7*6/17-5/7*6/17=72/119-30/119=6/17
Пошаговое объяснение:
ответ:3/7;4/21;6/17
Пошаговое объяснение:
1.(1/7*5/2)*6/5=5/14*6/5=1/7*3=3/7
2.7/12*4/21+5/12*4/21=1/3*1/3+5/3*1/21=1/9+5/63=4/21
1 5/7*6/17-5/7*6/17=12/7*6/17-30/119=72/119-30/119=6/17