Expand the fraction by the expansion number.

**Step 1: Calculate the numerator**

To calculate the new *numerator*, multiply the numerator of the fraction (2) by the expansion number (4):

Numerator = 2 × 4 = 8

**Step 2: Calculate the denominator**

To calculate the new *denominator*, multiply the denominator of the fraction (7) by the expansion number (4):

Denominator = 7 × 4 = 28