Question

найдите значние выражения 3 4/13•15 3/41-3 413•2 3/41

Answer 1

3 4/13 * 15 3/41 - 3 4/13 * 2 3/41 = 3 4/13 * (15 3/41 - 2 3/41) = 43/13 * 13 = 43