Subtract 28/72 from 7/75
7/75 - 28/72 is -133/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 75 × 24 = 1800,
7/75 = 7 × 24/75 × 24 = 168/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
28/72 = 28 × 25/72 × 25 = 700/1800 - Subtract the two like fractions:
168/1800 - 700/1800 = 168 - 700/1800 = -532/1800 - After reducing the fraction, the answer is -133/450
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