Fractions (Subtraction, Fractions with different denominators)：練習問題

Evaluate:
\( \frac{5}{6} - \frac{1}{4} \)

What is the value of \( 3 - 1\frac{5}{9} \)?

The sum of three fractions is 2. If two of the fractions are \( \frac{4}{7} \) and \( \frac{5}{14} \), what is the third fraction?

Subtract \( \frac{1}{6} \) from \( \frac{3}{5} \).

A string is \( \frac{7}{8} \) m long. If we cut away \( \frac{1}{3} \) m, how much string is left?

What is the result of \( \frac{5}{8} - \frac{1}{4} \)? Give your answer in the simplest form.

What is the value of \( \frac{7}{10} - \frac{1}{4} \)? Express the answer in its simplest form.

Mary has \( 2\frac{1}{4} \) liters of juice. She drinks \( \frac{5}{6} \) liters and then buys another \( \frac{1}{3} \) liters. How many liters of juice does she have now?

A wooden board is \( \frac{5}{6} \) m long. If a carpenter cuts off \( \frac{1}{4} \) m from the board, what is the length of the remaining board? Give your answer in its simplest form.

A roll of ribbon is \( 5 \) metres long. Amy uses \( 1\frac{3}{5} \) metres for a gift box and \( 2\frac{7}{10} \) metres for a bouquet. How many metres of ribbon are left? Express your answer as a fraction.