5 7/25- 3 11/36 = 4 4/5 + 2 2/7 *5 1/4 -7 11/12= зделайте этот пример по порядку 2 9/26 + 3 7/39 - 4 7/13 =
4 4/5 + 2 2/7 * 5 1/4 - 7 11/12=8 53/60 1) 2 2/7 * 5 1/4 = 12 2)4 4/5 +12 = 16 4/5 3) 16 4/5 - 7 11/12 = 8 53/60 5 7/25 - 3 11/36 = 1 877/900 2 9/26 + 3 7/39 - 4 7/13 =77/78 1) 2 9/26 + 3 7/39 =5 41/78 2)5 41/78 - 4 7/13 =77/78