Subtract 20/25 from 4/45
4/45 - 20/25 is -32/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
4/45 = 4 × 5/45 × 5 = 20/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
20/25 = 20 × 9/25 × 9 = 180/225 - Subtract the two like fractions:
20/225 - 180/225 = 20 - 180/225 = -160/225 - After reducing the fraction, the answer is -32/45
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