It is finding the closest estimate to number. Rounding is used in everyday calculations and in many different fields of work
If the dinner altogether costs £64, and there is a 20% tip, that brings the total amount paid to £76.80, and if four people are paying £19 towards the total, then there would not be enough for them to pay for both the meal and the tip, as 19x4 is 76, and the total is £76.80, meaning you need another 80 Pence.
Answer: No, as there is 80 pence off the total amount with all of there money added together which they would need to pay for the meal and the tip.
Hope this helps! Xo
16/20 = 8(2)/10(2) = 8/10. 8/10 can also be further reduced to 4/5.
2.586 is the answer cause you said mathematically