Subtract 81/20 from 3/25
1st number: 3/25, 2nd number: 4 1/20
3/25 - 81/20 is -393/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
3/25 = 3 × 4/25 × 4 = 12/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
81/20 = 81 × 5/20 × 5 = 405/100 - Subtract the two like fractions:
12/100 - 405/100 = 12 - 405/100 = -393/100
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