(2/9)*18=(2/9)*(18/1)=36/9=4
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1/2 + 1/9 = 9/18 + 2/18 = 11/18
1/9 = 2/18 3/6 = 9/18 2/18 + 9/18 = 11/18
2/9 × 18 = (2×18)/9 = 36/9 = 4 Alternatively, cancelling as you go: 2/9 × 18 = (2×18)/9 = 2×(18/9) = 2×2 = 4
2/9 divided by 18/5 is 0.1851851
4/9 = 8/18 1/2 = 9/18 Total: 17/18