30/4 = 15/2 = 7 and 1/2
7.5 x 4 = 30
one half
2/4, 4/8, 8/16, 15/30
4 over 30
4/30 - -7/30 = 11/30 or eleven thirtieths. Expressed as a decimal, this is equal to 0.36 recurring (that is, 0.36666...)
4/5 in its lowest terms
no, 2 over 10 simplifies to 1/5, and that isn't half. 5over 10 or 2 over 4 would equal half.
1 3/10
four and a half, 4 1/2, 4.5
4 over 8. Or in other words, a half.
Nope...1 over 2 equals 2 over 4. 2 over 4 is less than 3 over 4.
3/4 and 20/30 does not make a proportion. 20/30 = 2/3 3/4 does not equal 2/3 so it is not a proportion.