Subtract 72/10 from 27/9
1st number: 3 0/9, 2nd number: 7 2/10
27/9 - 72/10 is -21/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
27/9 = 27 × 10/9 × 10 = 270/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
72/10 = 72 × 9/10 × 9 = 648/90 - Subtract the two like fractions:
270/90 - 648/90 = 270 - 648/90 = -378/90 - After reducing the fraction, the answer is -21/5
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