Subtract 21/25 from 5/10
5/10 - 21/25 is -17/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 25 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 10 × 5 = 50,
5/10 = 5 × 5/10 × 5 = 25/50 - Likewise, for the 2nd fraction, since 25 × 2 = 50,
21/25 = 21 × 2/25 × 2 = 42/50 - Subtract the two like fractions:
25/50 - 42/50 = 25 - 42/50 = -17/50
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