Answer:
2(3x+x)=50...4x=25...width is 6/25 meter and length is 18/75
To make a fraction like this into a mixed number all you have to do is multiply the whole number times the denominator which would be 64; then add the numerator to your number which makes it 73 then add the denominator to the bottom. Thus, 73/8.
4 ounces are left because 3/4 of 20 is 5. And 1/5 of 5 is 4. I hope this helps