Subtract 28/20 from 84/27
1st number: 3 3/27, 2nd number: 1 8/20
84/27 - 28/20 is 77/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 20 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
84/27 = 84 × 20/27 × 20 = 1680/540 - Likewise, for the 2nd fraction, since 20 × 27 = 540,
28/20 = 28 × 27/20 × 27 = 756/540 - Subtract the two like fractions:
1680/540 - 756/540 = 1680 - 756/540 = 924/540 - After reducing the fraction, the answer is 77/45
- In mixed form: 132/45
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