Answer :
Answer:
40 : 70 is not equivalent
Step-by-step explanation:
If a ratio is a multiple or divisor of its parts then it is equivalent
10 : 20 ( divide both parts by 10 )
= 1 : 2 ← equivalent ratio
10 : 20 ( multiply both parts by 5 )
50 : 100 ← equivalent ratio
10 : 20 ( multiply both parts by 3 )
30 : 60 ← equivalent ratio
10 : 20
We cannot multiply the parts by a common multiple to obtain 40 : 70
40 : 70 is not an equivalent ratio