Know what the problem asked:

How much cake was left?

Know the given facts:

2 1/4 the cake mother had

1/3 given cake to children

*Determine the operations to use:

Subtraction

*Write number sentence:

2 1/4 - 1/3 = N

Solution:

2 1/4 - 1/3 = N

9/4 - 1/3 = N

27/12 - 4/12 = N

23/12 = N

N = 1 11/12

Final Answer:

1 11/12 is the cake left

Answer:

23/12

Step-by-step explanation:

lowest term is

1 11/12