Сократите 56/64 21/91 36/81 54/63 15/51 57/76

Question

Сократите 56/64 21/91 36/81 54/63 15/51 57/76

Answer 1

56/64=7/8  21/91=3/13  36/81=4/9  54/63=6/7  15/51=5/17  57/76=57/76