42/2 divided by 81/4
42/2 ÷ 81/4
=
28
27
Step-by-Step Solution
-
1Take reciprocal of second fraction81/4 becomes 4/81
-
2Multiply by reciprocal42/2 × 4/81
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3Multiply numerators & denominators42 × 4 = 168 2 × 81 = 162
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4Simplify168/162 = 28/27
How to Divide Fractions
To divide fractions, use "Keep, Change, Flip": keep the first fraction unchanged, change the ÷ to ×, then flip the second fraction. Multiply and simplify.