A baker starts with 4/10 kilogram of flour to make bread. He adds 3/100 kilogram of flour to his bread mixture. How much total flour is used to make the bread?

Answer 1

To find the total amount of flour used to make the bread, we need to add the two quantities of flour together: \( \frac{4}{10} \) kilogram and \( \frac{3}{100} \) kilogram.

First, let's convert \( \frac{4}{10} \) into a fraction with a denominator of 100 for easier addition:

\[ \frac{4}{10} = \frac{4 \times 10}{10 \times 10} = \frac{40}{100} \]

Now we can add \( \frac{40}{100} \) and \( \frac{3}{100} \):

\[ \frac{40}{100} + \frac{3}{100} = \frac{40 + 3}{100} = \frac{43}{100} \]

Thus, the total amount of flour used to make the bread is:

\[ \frac{43}{100} \text{ kilogram} \]

To express this as a decimal, \( \frac{43}{100} = 0.43 \) kilogram.

Therefore, the total flour used is 0.43 kilogram or \( \frac{43}{100} \) kilogram.