Question

Decide if these fractions are indeed equivalent by answering yes or no!

2/5=3/9

5/8=10/16

4/6=3/10

15/45=5/15

7/8=9/12

4/11=3/16

14/28=1/2

3/26=7/15

Answer 1

\[\frac{a}{b}=\frac{c}{d}\iff ad=bc\] so check that

Answer 2

for example in number 1, \[2\times 9\neq 5\times 3\] so answer is no

Answer 3

1.) no
2.) yes
3.) no
4.) yes
5.) no
6.) no
7.) yes
8.) no