Subtract 7/27 from 90/7
1st number: 12 6/7, 2nd number: 7/27
90/7 - 7/27 is 2381/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
90/7 = 90 × 27/7 × 27 = 2430/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
7/27 = 7 × 7/27 × 7 = 49/189 - Subtract the two like fractions:
2430/189 - 49/189 = 2430 - 49/189 = 2381/189 - In mixed form: 12113/189
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