Subtract 81/50 from 5/21
1st number: 5/21, 2nd number: 1 31/50
5/21 - 81/50 is -1451/1050.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 50 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 21 × 50 = 1050,
5/21 = 5 × 50/21 × 50 = 250/1050 - Likewise, for the 2nd fraction, since 50 × 21 = 1050,
81/50 = 81 × 21/50 × 21 = 1701/1050 - Subtract the two like fractions:
250/1050 - 1701/1050 = 250 - 1701/1050 = -1451/1050
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