Answer:
7/20
Step-by-step explanation
There are 20 pens.
7 are blue.
13 are black
If you add all the total pens together and it equals 20 PENS.
7/20 is the answer
Answer: 7/20 of the pens are blue
Step-by-step explanation: you know there are 7 blue pens and 20 total pens so that means there are 7 blue pens out of 20 total pens
this means there is 7/20 blue pens which is the answer
hope this helps mark me brainliest if it helped