Subtract 21/50 from 16/45
16/45 - 21/50 is -29/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
16/45 = 16 × 10/45 × 10 = 160/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Subtract the two like fractions:
160/450 - 189/450 = 160 - 189/450 = -29/450
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