278/4 divided by 280/2
278/4 ÷ 280/2
=
139
280
Step-by-Step Solution
-
1Take reciprocal of second fraction280/2 becomes 2/280
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2Multiply by reciprocal278/4 × 2/280
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3Multiply numerators & denominators278 × 2 = 556 4 × 280 = 1120
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4Simplify556/1120 = 139/280
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.