Subtract 1/80 from 25/75
25/75 - 1/80 is 77/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
25/75 = 25 × 16/75 × 16 = 400/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
1/80 = 1 × 15/80 × 15 = 15/1200 - Subtract the two like fractions:
400/1200 - 15/1200 = 400 - 15/1200 = 385/1200 - After reducing the fraction, the answer is 77/240
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