Question

решите удобным способом 3 3/8 х 3 1/5 + 3 1/5 х 1 5/12 - 4 1/6 х 3 1/5

пж это срочно​

Answer 1

3 3/8 * 3 1/5 + 3 1/5 * 1 5/12 - 4 1/6 * 3 1/5 = 3 1/5 * (3 3/8 + 1 5/12 - 4 1/6) = 16/5 * (27/8 + 17/12 - 25/6) = 16/5 * (27 * 3 + 17 * 2 - 25 * 4)/24 = 16/5 * (81 + 34 - 100)/24 = 16/5 * 15/24 = 2/1 * 3/3 =2