IDNLearn.com is the perfect place to get detailed and accurate answers to your questions. Ask your questions and get detailed, reliable answers from our community of knowledgeable experts.
Answer:
4/10= 8/20 or 2/5
6/9=18/27
4/8=1/2 or 16/32
12/16=24/32 or 3/4
12/20= 36/60 or 3/5
16/20=32/40 or 4/5