Subtract 30/36 from 20/25
20/25 - 30/36 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
20/25 = 20 × 36/25 × 36 = 720/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
30/36 = 30 × 25/36 × 25 = 750/900 - Subtract the two like fractions:
720/900 - 750/900 = 720 - 750/900 = -30/900 - After reducing the fraction, the answer is -1/30
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