Subtract 54/80 from 1/7
1/7 - 54/80 is -149/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 7 × 80 = 560,
1/7 = 1 × 80/7 × 80 = 80/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
54/80 = 54 × 7/80 × 7 = 378/560 - Subtract the two like fractions:
80/560 - 378/560 = 80 - 378/560 = -298/560 - After reducing the fraction, the answer is -149/280
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