Subtract 20/10 from 7/27
1st number: 7/27, 2nd number: 2 0/10
7/27 - 20/10 is -47/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
7/27 = 7 × 10/27 × 10 = 70/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
20/10 = 20 × 27/10 × 27 = 540/270 - Subtract the two like fractions:
70/270 - 540/270 = 70 - 540/270 = -470/270 - After reducing the fraction, the answer is -47/27
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