Subtract Unlike Denominators
Convert to a common denominator first, then cross out the matching parts — the shading left over is the difference
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Convert to a common denominator first, then cross out the matching parts — the shading left over is the difference
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Subtracting unlike fractions also starts with converting. Once both bars show equal parts, cross out the subtrahend’s parts from the first bar — whatever shading remains is the difference. Start with the “Basic” level (related denominators), then try “General” for any unlike denominators!
Tap “Convert” for equal parts, “Cross out” to remove the subtrahend from the first bar, then check the shading left and simplify the difference.