A fraction like 5/4 is 5 unit fractions of 1/4, so 5/4 = 5 × 1/4. To find 3 × 2/5, count the unit fractions: 3 groups of 2 fifths is 6 fifths, or 6/5. We solve story problems this way too.
16 blocks · 5 graded
15 blocks · 5 graded
14 blocks · 5 graded
10 blocks · 1 graded
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