11. \{4.NF.B.3.D\} Emily has \( 7 / 8 \) of a pizza. She ate \( 3 / 8 \) of the pizza for lunch. What fraction of the pizza is left over? (simplest form)
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Emily started with \( 7/8 \) of a pizza and ate \( 3/8 \). To find out how much is left, we subtract the fraction she ate from the fraction she had: \[ \frac{7}{8} - \frac{3}{8} = \frac{7 - 3}{8} = \frac{4}{8} \] Now, simplifying \( \frac{4}{8} \), we divide both the numerator and denominator by their greatest common divisor, which is 4: \[ \frac{4 \div 4}{8 \div 4} = \frac{1}{2} \] So, Emily has \( \frac{1}{2} \) of the pizza left.