Question

Малыш и Карлсон пили чай с тортом .малыш съел 1/5 часть торта,а Карлсон -2/3.какая часть торта осталась?

Answer 1

Сначала приведём к общему знаменателю это - 15. 
1) 1/5 + 2/3 = 3/15 + 10/15 = 13/15  (ч) - торта, которую съели малыш и карлсон вместе.
2) 15/15 - 13/15 = 2/15.
Осталось 2/15 часть торта осталась.

Answer 2

Calculating Remaining Cake

To find out how much cake is left, we can calculate the combined portion of cake eaten by the child and Karlson and then subtract it from the total cake.

Portion of cake eaten by the child: 1/5 Portion of cake eaten by Karlson: 2/3

Calculation

To calculate the remaining portion of the cake, we can add the portions eaten by the child and Karlson and then subtract the result from 1 (since 1 represents the whole cake).

1 - (1/5 + 2/3) = Remaining portion of the cake

Result

The remaining portion of the cake after the child and Karlson have eaten their shares is 1/15.