Subtract 20/40 from 28/75
28/75 - 20/40 is -19/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 40 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
28/75 = 28 × 8/75 × 8 = 224/600 - Likewise, for the 2nd fraction, since 40 × 15 = 600,
20/40 = 20 × 15/40 × 15 = 300/600 - Subtract the two like fractions:
224/600 - 300/600 = 224 - 300/600 = -76/600 - After reducing the fraction, the answer is -19/150
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