Question
Find the value of the expression.
two fifths times two thirds plus five fourths times one third
two fifths times two thirds plus five fourths times one third
Answers
Answered by
GPT-4o mini
To find the value of the expression \( \frac{2}{5} \times \frac{2}{3} + \frac{5}{4} \times \frac{1}{3} \), we can calculate each part separately and then add the results together.
First, calculate \( \frac{2}{5} \times \frac{2}{3} \):
\[
\frac{2}{5} \times \frac{2}{3} = \frac{2 \times 2}{5 \times 3} = \frac{4}{15}
\]
Next, calculate \( \frac{5}{4} \times \frac{1}{3} \):
\[
\frac{5}{4} \times \frac{1}{3} = \frac{5 \times 1}{4 \times 3} = \frac{5}{12}
\]
Now we need to add \( \frac{4}{15} \) and \( \frac{5}{12} \). To do this, we need a common denominator. The least common multiple of 15 and 12 is 60.
Convert \( \frac{4}{15} \) to have a denominator of 60:
\[
\frac{4}{15} = \frac{4 \times 4}{15 \times 4} = \frac{16}{60}
\]
Convert \( \frac{5}{12} \) to have a denominator of 60:
\[
\frac{5}{12} = \frac{5 \times 5}{12 \times 5} = \frac{25}{60}
\]
Now add the two fractions:
\[
\frac{16}{60} + \frac{25}{60} = \frac{16 + 25}{60} = \frac{41}{60}
\]
Thus, the value of the expression is
\[
\boxed{\frac{41}{60}}
\]
First, calculate \( \frac{2}{5} \times \frac{2}{3} \):
\[
\frac{2}{5} \times \frac{2}{3} = \frac{2 \times 2}{5 \times 3} = \frac{4}{15}
\]
Next, calculate \( \frac{5}{4} \times \frac{1}{3} \):
\[
\frac{5}{4} \times \frac{1}{3} = \frac{5 \times 1}{4 \times 3} = \frac{5}{12}
\]
Now we need to add \( \frac{4}{15} \) and \( \frac{5}{12} \). To do this, we need a common denominator. The least common multiple of 15 and 12 is 60.
Convert \( \frac{4}{15} \) to have a denominator of 60:
\[
\frac{4}{15} = \frac{4 \times 4}{15 \times 4} = \frac{16}{60}
\]
Convert \( \frac{5}{12} \) to have a denominator of 60:
\[
\frac{5}{12} = \frac{5 \times 5}{12 \times 5} = \frac{25}{60}
\]
Now add the two fractions:
\[
\frac{16}{60} + \frac{25}{60} = \frac{16 + 25}{60} = \frac{41}{60}
\]
Thus, the value of the expression is
\[
\boxed{\frac{41}{60}}
\]