Subtract 21/50 from 2/18
2/18 - 21/50 is -139/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
2/18 = 2 × 25/18 × 25 = 50/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Subtract the two like fractions:
50/450 - 189/450 = 50 - 189/450 = -139/450
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