
Christine N. answered 04/12/19
Vietnamese English bilingual specializes in Mathematics and ESL
Hi Ella,
Katie used three eights (3/8) of her flour. Therefore, the remaining amount of the unused flour will be
1 - (3/8) => 8/8 - 3/8 = 5/8
To convert it into percentage, you can divide 100 to 8 and then multiply it by 5:
100/8*5 = 62.5 %
Result : 62.5%