Answer:
Hey there!
The product of these two fractions would equal 15.
Hope this helps :)
42=2[{45-3(14-21)}+4]
42=2[{45-3×-6}+4]
42=2[{45-18}+4]
42=2[{27}+4]
42=2[27+4]
42=2×31
42=62