math 117/ algebra

Fungicides account for 1/10 of the pesticides used in the US. Insecticides account for 1/4 of all pesticides used in the US. The two ratio of herbicides to insecticides used in the US can be written 1/10 ÷ 1/4 . Write this ratio in simplest form.

see the other post about division is the reciprocal of multiplication.

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