1 - 4/7 = 7/7 - 4/7 = (7 - 4)/7 = 3/7.
3 and 7 are both prime numbers, so this is in lowest terms.
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-4 and 7/11 is in its simplest form.
three minus seven is four
Seven ninths minus four ninths is 1/3.
It is: 4 and 5/8 minus 3 and 1/4 = 1.375 or as 1 and 3/8
Expressed as a proper fraction in its simplest form, 4/9 - 2/3 = -2/9 or minus two ninths.