Subtract 42/4 from 5/45
1st number: 5/45, 2nd number: 10 2/4
5/45 - 42/4 is -187/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
5/45 = 5 × 4/45 × 4 = 20/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
42/4 = 42 × 45/4 × 45 = 1890/180 - Subtract the two like fractions:
20/180 - 1890/180 = 20 - 1890/180 = -1870/180 - After reducing the fraction, the answer is -187/18
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