Subtract 42/9 from 90/75
1st number: 1 15/75, 2nd number: 4 6/9
90/75 - 42/9 is -52/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 9 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 75 × 3 = 225,
90/75 = 90 × 3/75 × 3 = 270/225 - Likewise, for the 2nd fraction, since 9 × 25 = 225,
42/9 = 42 × 25/9 × 25 = 1050/225 - Subtract the two like fractions:
270/225 - 1050/225 = 270 - 1050/225 = -780/225 - After reducing the fraction, the answer is -52/15
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