Subtract 20/27 from 45/7
1st number: 6 3/7, 2nd number: 20/27
45/7 - 20/27 is 1075/189.
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,
45/7 = 45 × 27/7 × 27 = 1215/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
20/27 = 20 × 7/27 × 7 = 140/189 - Subtract the two like fractions:
1215/189 - 140/189 = 1215 - 140/189 = 1075/189 - In mixed form: 5130/189
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