Сильно ! найдите значения выражений. 5/9+13/27 , 5/12-13/72 , 5/12+1/60 , 9/10+4/15, 3/8+524 , 3/5-1/7 , 9/17-19/68 , 4/15-11/60.

5/9 + 13/27 = 1ц. 1/27
5/12 - 13/72 = 17/72
5/12 + 1/60 = 26/60 = 13/30
9/10 + 4/15 = 35/30 = 1ц. 1/6
3/8 + 524 = 524ц. 3/8
3/5 - 1/7 = 16/35
9/17 - 19/68 = 17/68
4/15 - 11/60 = 5/60 = 1/12