Like fractions are the fractions which have the same denominator and unlike fractions are the fractions which do not have the same denominator.
Like fractions have the same denominator, unlike fractions don't.
Like fractions have the same denominators (bottom part of fraction), unlike fractions do not.
Unlike. Unlike. Unlike. Unlike.
fractions having same denominators are like fractions & others are unlike fractions
"Un" means "not." Unlike fractions are not alike.
Unlike fractions have denominators that are unequal, and therefore cannot be added or subtracted. If two fractions need to be added or subtracted they must first be converted to like fractions.
Change them to like fractions and proceed.