Subtract 5/20 from 81/50
1st number: 1 31/50, 2nd number: 5/20
81/50 - 5/20 is 137/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
81/50 = 81 × 2/50 × 2 = 162/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
5/20 = 5 × 5/20 × 5 = 25/100 - Subtract the two like fractions:
162/100 - 25/100 = 162 - 25/100 = 137/100 - In mixed form: 137/100
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