Ava's birthday cake is about 11 7/10 cm long. her candles stick up from the cake an additional 5 4/10 cm. what was the total hight of the cake and the candles?{ the answer is 17.1}

Total height of the cake and the candles is 17.1 cm

Step-by-step explanation:

Step 1: Convert the mixed fractions into decimal expressions.

11 7/10 cm = 117/10 = 11.7 cm

5 4/10 cm = 54/10 = 5.4 cm

Step 2: Find total height of the cake and the candles

Total height = 11.7 + 5.4 = 17.1 cm

17.1 is the correct answer