5-4/9 ; 7-4 3/11; 3 2/7 + 2 6/7; 6 7/15 + 1 8/25 решите ❤

1) 5 - 4/9 = 4 9/9 - 4/9 = 4 5/9 2) 7 - 4 3/11 = 6 11/11 - 4 3/11 = 2 8/11 3) 3 2/7 + 2 6/7 = 5 8/7 = 6 1/7 4) 6 7/15 + 1 8/25 = 6 35/75 + 1 24/75 = 7 59/75