42/9 * 4/5
9/16 * 5/6 = (9*5)/(16*6) = (3*5)/(16*2) = 15/32
5/9 x 3/10 is 1/6
7/8 x 6/35 x 5/9 = (7×6×5)/(8×35×9) = 1/12 ≈ 0.083333
(8/9) + (5/6)
42/9 * 4/5
9/16 * 5/6 = (9*5)/(16*6) = (3*5)/(16*2) = 15/32
5 over 54
5/9 x 3/10 is 1/6
2/9 x 5/6 = 10/54 0r 5/27
9 over 20
7/8 x 6/35 x 5/9 = (7×6×5)/(8×35×9) = 1/12 ≈ 0.083333
On a scientific calculator, the problem would look like this:6+(5/(7x(2+(2/9))))The answer: 6.3214285714_
4/5 x 5/6 = 20/30 or 2/3 2/3 x 9/8 = 18/24 or 3/4
6 - 5/9 = 5 and 4/9
6/5 - (-2/9) 6/5 + 2/9= 64/45
(8/9) + (5/6)