Answer:
Step-by-step explanation:
(7/8 - 4/5)^2 = 9
1600
= 0.005625
Calculation steps
Subtract: 7
8
- 4
5
= 7 · 5
8 · 5
- 4 · 8
5 · 8
= 35
40
- 32
40
= 35 - 32
40
= 3
40
The common denominator you can calculate as the least common multiple of the both denominators - LCM(8, 5) = 40
Power: 3
40
^ 2 = 32
402
= 9
1600
hopefully it's right
