Subtract 20/90 from 27/12
1st number: 2 3/12, 2nd number: 20/90
27/12 - 20/90 is 73/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
27/12 = 27 × 15/12 × 15 = 405/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
20/90 = 20 × 2/90 × 2 = 40/180 - Subtract the two like fractions:
405/180 - 40/180 = 405 - 40/180 = 365/180 - After reducing the fraction, the answer is 73/36
- In mixed form: 21/36
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