Subtract 30/75 from 10/80
10/80 - 30/75 is -11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 75 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 80 × 15 = 1200,
10/80 = 10 × 15/80 × 15 = 150/1200 - Likewise, for the 2nd fraction, since 75 × 16 = 1200,
30/75 = 30 × 16/75 × 16 = 480/1200 - Subtract the two like fractions:
150/1200 - 480/1200 = 150 - 480/1200 = -330/1200 - After reducing the fraction, the answer is -11/40
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