(13/130+50/130)*26/7=63/130*26/7=63*26/130*7=
1638/910=1.8
(1/10 + 5/13) ÷ 7/26 = 63/130 × 26/7 = 9/5
сократить числа на 7 и 26.
(7 - ^-3)^2/7^ - 9 = 7^- 6/7^ - 9 = 7^3
(13/130+50/130)*26/7=63/130*26/7=63*26/130*7=
1638/910=1.8
(1/10 + 5/13) ÷ 7/26 = 63/130 × 26/7 = 9/5
сократить числа на 7 и 26.
(7 - ^-3)^2/7^ - 9 = 7^- 6/7^ - 9 = 7^3