Subtract 72/12 from 21/75
1st number: 21/75, 2nd number: 6 0/12
21/75 - 72/12 is -143/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
72/12 = 72 × 25/12 × 25 = 1800/300 - Subtract the two like fractions:
84/300 - 1800/300 = 84 - 1800/300 = -1716/300 - After reducing the fraction, the answer is -143/25
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