Solve Problems with Positive Rational Numbers

Front

What is the multiplicative inverse of \( \frac{6}{5} \)?

Back

The multiplicative inverse of \( \frac{6}{5} \) is \( \frac{5}{6} \).

Front

What is the key to adding decimals?

Back

The key to adding decimals is to line up the decimals.

Front

Calculate \( 50 \div 8 \).

Back

\( 50 \div 8 = 6.25 \)

Front

If a team of runners is needed to run a \( \frac{1}{4} \) mile relay race and each runner must run \( \frac{1}{16} \) mile, how many runners are needed?

Back

4 runners are needed.

Front

Estimate the result of \( 26.97 \div 6.2 \) and place the decimal point correctly.

Back

The estimated result is \( 4.35 \).

Front

What is a positive rational number?

Back

A positive rational number is a number that can be expressed as \( \frac{a}{b} \) where \( a \) and \( b \) are integers, \( b \neq 0 \), and \( a \) is greater than 0.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator.

Front

What is the process for multiplying fractions?

Back

To multiply fractions, multiply the numerators together and the denominators together.

Front

What is the process for dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor.

Front

What is the sum of \( \frac{1}{4} + \frac{1}{4} \)?

Back

The sum is \( \frac{1}{2} \).