exam Maths Puzzle Numerical Ability

7 3/5
- 4 5/6
_______________
?

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exam Other Question

Useing the PEMEDS expesssion, (Please, excuse, my dear, aunt sally)

Simplify

1. 2+3*5^2-7

2. 6+3[(12/4)+5]

3. (4/2)+4(5-2)^2

4. -8-81/9*2^2+7 if you add one third of a number to the number itself, you get 48. what is the number?