Subtract 21/27 from 28/10
1st number: 2 8/10, 2nd number: 21/27
28/10 - 21/27 is 91/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
28/10 = 28 × 27/10 × 27 = 756/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Subtract the two like fractions:
756/270 - 210/270 = 756 - 210/270 = 546/270 - After reducing the fraction, the answer is 91/45
- In mixed form: 21/45
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