Subtract 21/50 from 3/12
3/12 - 21/50 is -17/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
3/12 = 3 × 25/12 × 25 = 75/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
21/50 = 21 × 6/50 × 6 = 126/300 - Subtract the two like fractions:
75/300 - 126/300 = 75 - 126/300 = -51/300 - After reducing the fraction, the answer is -17/100
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