Subtract 21/75 from 18/12
1st number: 1 6/12, 2nd number: 21/75
18/12 - 21/75 is 61/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
21/75 = 21 × 4/75 × 4 = 84/300 - Subtract the two like fractions:
450/300 - 84/300 = 450 - 84/300 = 366/300 - After reducing the fraction, the answer is 61/50
- In mixed form: 111/50
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