Subtract 30/7 from 27/9
1st number: 3 0/9, 2nd number: 4 2/7
27/9 - 30/7 is -9/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
27/9 = 27 × 7/9 × 7 = 189/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
30/7 = 30 × 9/7 × 9 = 270/63 - Subtract the two like fractions:
189/63 - 270/63 = 189 - 270/63 = -81/63 - After reducing the fraction, the answer is -9/7
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