3/7 - 8/7 as a fraction

Learn how to find what is 3/7 minus 8/7 in fraction form just in a few minutes. We have covered the easiest method to write 3/7 - 8/7 as a fraction and decimal.

Summary: 3/7 minus 8/7 = -5/7
Since both fractions have equal/common denominator, 3/7 minus 8/7 is a like fractions subtraction. Subtracting fractions with common denominator like 3/7 and 8/7, and expressing it in the fraction form is a very simple process. For like fraction subtraction, directly subtract the numerators (3 - 8) while keeping the common denominator as it is. You may wonder why the numerators alone are being subtracted and not the denominators in the expression (3/7) - (8/7). Because we can take common denominators out when simplifying the fraction subtraction expression (3/7) - (8/7), so the expression becomes 1/7 (3 - 8). By simplifying further, the numerator becomes (3 - 8) = -5, and the denominator remains the same as 7. Therefore, 3/7 - 8/7 as a fraction is -5/7.

CALCULATION: 3/7 - 8/7 as a fraction
3/7 - 8/7 = (?)
3/7 - 8/7 = (3 - 8)/7
= -5/7
3/7 - 8/7 = -5/7
3/7 minus 8/7 as a fraction is -5/7.

where
3/7 is a proper fraction as a minuend,
8/7 is a improper fraction as a subtrahend,
-5/7 is the difference between 3/7 and 8/7.

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3/7 minus 8/7 as a decimal
3/7 - 8/7 = -5/7
-5/7 = -0.7143
(3/7) - (8/7) as a decimal is -0.7143

where
-0.7143 is the difference between 3/7 and 8/7.