8/10 16/20
1/4
Of those, 4/5 is the greatest.
Four equivalent fractions for 7/15 are 14/30, 28/60, 56/120, and 112/240.
Equivalent fractions are multiples of the reduced fraction. -4/4 reduces to -1, so equivalent fractions would be -1/1, -2/2, -3/3, etc.
Six over fifteen, two over five.
Multiply the top and the bottom of the fraction by the same number and you will get an equivalent fraction. For example 7*2 over 8*2 is 14 over 16 which is equivalent to 7 over 8. Do the same with 3,4,5 and 6 in place of the 2 and you will get five equivalent fractions!
Two over twelve, three over eighteen, and four over twenty-four are all equivalent to one over six.
10/12, 15/18
It is any one of infinitely many fractions of the form (4*n)/(5*n) where n is a non-zero integer.
8/30 and 12/45
There are infinitely many equivalent fractions. Multiply the numerator (top) and the denominator (bottom) of the fraction by any non-zero number. You will have an equivalent fraction.
two over three and eight over twelve