5. Add and Subtract Mixed Numbers
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Begin by rounding the fractions.
0 * 1 ≈ 0
Before we will make an estimate, we will round 120 and 1920. 1/20 * 19/20 ≈ 0 * 1 Next, we will use the rounded number to make an estimate. 1/20 * 19/20 ≈ 0 * 1 ≈ 0