Answer: 15:42or simplified 5:14
Step-by-step explanation:
15 angelfish to 42 guppies
15/3= 5
42/3=14
so the ratio of 15:42 is equal to 5:14
Step-by-step explanation:

BODMAS
Bracket
of
Division
Multiplication
Addition
Subtraction.1+2x5 = 1+10 = 11
<R=(120-40)/2=80/2=40 degrees