Subtract 20/75 from 3/28
3/28 - 20/75 is -67/420.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 75 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 28 × 75 = 2100,
3/28 = 3 × 75/28 × 75 = 225/2100 - Likewise, for the 2nd fraction, since 75 × 28 = 2100,
20/75 = 20 × 28/75 × 28 = 560/2100 - Subtract the two like fractions:
225/2100 - 560/2100 = 225 - 560/2100 = -335/2100 - After reducing the fraction, the answer is -67/420
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