Jacob mixes 1/3 cup o yellow paint for every 1/5 cup of blue paint to make green paint how many cups of yellow paint are needed for one cup of blue paint

cups

Step-by-step explanation:

Jacob mixes cup of yellow paint for every cup of blue paint to make green paint.

The ratio of yellow paint to blue paint =

                                                               = 5:3

cup of blue paint = cup of yellow paint

  1 cup of blue paint = cup of yellow paint

Hence, For 1 cup of blue paint needed cups of yellow paint.

Well I don't know !
Let's find it together:

The factors of  12  are  1,  2,  3,  4,  6,  and  12 .

The factors of  20  are  1,  2,  4,  5,  10,  and  20 .

The factors of  36  are  1,  2,  3,  4,  6,  9,  12,  18,  and  36 .

The common factors of  12,  20,  and  36 (the ones that
show up on all three lists) are ...

                       1,  2, and  4 . 

The greatest one of these is  4 .