Subtract 90/21 from 2/27
1st number: 2/27, 2nd number: 4 6/21
2/27 - 90/21 is -796/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
2/27 = 2 × 7/27 × 7 = 14/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
90/21 = 90 × 9/21 × 9 = 810/189 - Subtract the two like fractions:
14/189 - 810/189 = 14 - 810/189 = -796/189
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