Shama completed the right column of the table to help her find the difference of the fractions. Seven-eighths minus two-thirds Step 1, Find a common denominator for the fractions. Shama's Work shows 24. Step 2, Find an equivalent fraction for 7-eighths. Shama's Work shows StartFraction 21 over 24 EndFraction. Step 3, Find an equivalent fraction for 2-thirds. Shama's Work shows StartFraction 8 over 24 EndFraction. Step 4, Write the difference as a fraction. Shama's Work shows StartFraction 13 over 24 EndFraction. In which step did his first error occur? Step