Задание написано ** фото!!!

Question

Задание написано на фото!!!

---

Answer 1

А)
1ц1/3 * 4ц2/7= 4/3*30/7 = 40/7 = 7ц1/7
9/1 - 7ц1/7=63/7-40/7=23/7
23/7:2ц4/21=23/7:46/21=23/7*21/46=3/2=1,5

б) = (21-46)*(-35) = (-25)*(-35) = 875

Answer 2

А) ( 9-4/3*30/7):46/21= (9-40/7):46/21=23/7 : 46/21=1,5
б) (-8+29-46) • (3-38)= (-25) • (-35)=875