Решить, 1 1/48×2 2/5-(9 1/6×4/15+2 5/9)×2/5 - вопрос №1148225916415259253928318 от ivanbaclan 26.12.2020 19:46

Question

Математика: Решить, 1 1/48×2 2/5-(9 1/6×4/15+2 5/9)×2/5

ivanbaclan · Answer

3         5          1        2          41 1/48 * 2 2/5 - (9 1/6 * 4/15 + 2 5/9) * 2/5 = 9/20 = 0,451) 9 1/6 * 4/15 = 55/6 * 4/15 = 11/3 * 2/3 = 22/9 = 2 4/92) 2 4/9 + 2 5/9 = 4 9/9 = 53) 1 1/48 * 2 2/5 = 49/48 * 12/5 = 49/4 * 1/5 = 49/20 = 2 9/20 =  2,454) 5 * 2/5 = 25) 2,45 - 2 = 0,45 = 9/20...