Вычеслите: 0,7*9/14+(2 2/15-3 5/9): 9,, 12 ,заранее

7/10×9/14+(22/15-35/9):9,6= 7/10 × 9/14 _ 109/45 ÷ 48/5 = 7/10 × 9/14 - 109/45 × 5/48 = 1/10×9/2-109/9×1/48 = 9/20- 109/9×1/48 = 9/20-109/432 = 427/2160