No
7 eights because 1 fourth is equal to 2 eights.
No.
12/8 or 1 and 1/2
1 fourth and 1 half do not equal 3 eighths (nor 3 eights!).
1 half added to 5 eights = 6
1/4
3/8 will never equal 5/8. But if you mean what number can you multiply 3/8 by to get 5/8, that number is about 1.666666666... (1 with infinite 6's after the decimal), or simply, 1 and 2/3.
3/8 is equal to 2/5 i think
(3/8)/(1/5) = 15/8 = 1.875
10 eigths or 1 and 2 eights
(8*4) mod 9 = 5
1 and 5/8 is equal to 13/5 (multiply one by the denominator and add the five from the numerator.Then you just add the numerators. Therefore, 13/5 + 5/8 is 18/8.This can be reduced to 9/4, which can also be written as 2 and 1/4.