Subtract 81/50 from 21/5
1st number: 4 1/5, 2nd number: 1 31/50
21/5 - 81/50 is 129/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 5 × 10 = 50,
21/5 = 21 × 10/5 × 10 = 210/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
81/50 = 81 × 1/50 × 1 = 81/50 - Subtract the two like fractions:
210/50 - 81/50 = 210 - 81/50 = 129/50 - In mixed form: 229/50
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