Subtract 7/4 from 81/50
1st number: 1 31/50, 2nd number: 1 3/4
81/50 - 7/4 is -13/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 4 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 4 × 25 = 100,
7/4 = 7 × 25/4 × 25 = 175/100 - Subtract the two like fractions:
162/100 - 175/100 = 162 - 175/100 = -13/100
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