121/2 divided by 80/4
121/2 ÷ 80/4
=
121
40
Step-by-Step Solution
-
1Take reciprocal of second fraction80/4 becomes 4/80
-
2Multiply by reciprocal121/2 × 4/80
-
3Multiply numerators & denominators121 × 4 = 484 2 × 80 = 160
-
4Simplify484/160 = 121/40
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.