Fractions practice

Subtract fractions with the same denominator

Subtract amounts expressed in the same fractional unit, then simplify the difference without changing its value.

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Confirm that the denominators match. Subtract the second numerator from the first, keep the denominator and simplify the resulting fraction.

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Learning objective

What this activity builds

Subtract the numerators of like fractions while retaining their common unit.

Worked example

Find 9/10 - 4/10.

5/10 = 1/2.

Nine tenths minus four tenths leaves five tenths. Dividing the numerator and denominator of 5/10 by 5 produces the equivalent fraction 1/2.

Teaching notes

Make the practice count

  • Say the unit name while reading the equation.
  • Have the learner check the difference by adding it to the subtracted amount.
  • Keep subtraction and simplification as two visible steps until both are secure.

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Configured PDF · Same-denominator Fraction Subtraction · US Letter

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Math SheetNameScoreTeacherDate/ 10Same-denominator Fraction SubtractionSubtract the numerators while keeping the shared denominator.1.37-272.28-183.312-2124.56-165.26-166.1011-8117.48-188.33-239.511-31110.24-14math-sheet.comPage 1 / 1

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