Subtract 20/45 from 27/10
1st number: 2 7/10, 2nd number: 20/45
27/10 - 20/45 is 203/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
27/10 = 27 × 9/10 × 9 = 243/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Subtract the two like fractions:
243/90 - 40/90 = 243 - 40/90 = 203/90 - In mixed form: 223/90
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