Goal:

Subtract Mixed Numbers with Unlike Denominators

Subtract:

Step 1:  Find the LCD of the fractions.

Step 2: Write equivalent fractions.

Step 3:  Regroup if needed.

Step 4: Subtract and write in simplest form.

Practice

Subtract.  Write each difference in simplest form.

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.  Complete the table.

Answers

1.  2 ²/₁₅

2.  5 ¹/₂

3.  1 ⁴/₅

4.  1 ¹³/₂₄

5.  7 ¹/₄

6.  3 ¹/₈

7.  2 ⁵/₁₂

8.  ⁹/₁₀

9.  3 ⁷/₃₀

10.  1 ¹/₄;  3 ⁷/₈;  7 ³/₅