Subtract 42/9 from 81/25
1st number: 3 6/25, 2nd number: 4 6/9
81/25 - 42/9 is -107/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 25 × 9 = 225,
81/25 = 81 × 9/25 × 9 = 729/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
42/9 = 42 × 25/9 × 25 = 1050/225 - Subtract the two like fractions:
729/225 - 1050/225 = 729 - 1050/225 = -321/225 - After reducing the fraction, the answer is -107/75
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