3.3 Adding and Subtracting Fractions: Match the Piece Sizes First
Point 1 of 4
3.3.1 Same Denominator: Just Add the Parts
Core idea
They're all 1/8 pieces, so 3 pieces plus 2 pieces is 5 pieces — leave the bottom alone and only add or subtract the tops.
Module goal. Add and subtract fractions once the parts match, handling unlike denominators with a common denominator, mixed-number addition and subtraction, and reducing the result.
eastmath.com · 3.3 Adding and Subtracting Fractions: Match the Piece Sizes First · 3.3.1 Same Denominator: Just Add the Parts