Subtract 21/12 from 10/25
1st number: 10/25, 2nd number: 1 9/12
10/25 - 21/12 is -27/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
10/25 = 10 × 12/25 × 12 = 120/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300 - Subtract the two like fractions:
120/300 - 525/300 = 120 - 525/300 = -405/300 - After reducing the fraction, the answer is -27/20
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