Решите примеры: 7 1/2*2 1/2,5 5/6*6 1/6,4 1/5*2 3/7,3 - вопрос №71241697122125566164152373185316956316 от dizendorfsergei007 08.01.2020 04:03

Question

Математика: Решите примеры: 7 1/2*2 1/2,5 5/6*6 1/6,4 1/5*2 3/7,3 1/8*5 3/16,9 5/6*3 1/6.

dizendorfsergei007 · Answer

7 1/2 * 2 1/2 = 15/2 * 5/2 = 75/4 = 18 3/4
5 5/6 * 6 1/6 = 35/6 * 37/6 = 1295/36 = 35 35/36
4 1/5 * 2 3/7 = 21/5 * 17/7 = 357/35 = 10 7/35 = 10 1/5
3 1/8 * 5 3/16 = 25/8 * 83/16 = 2075/128 = 16 27/128
9 5/6 * 3 1/6 = 59/6 * 19/6 = 1121/36 = 31 5/36